Stenner Pumps SVP Series User manual

TO BE INSTALLED AND MAINTAINED BY PROPERLY TRAINED
PROFESSIONAL INSTALLER ONLY. READ MANUAL & LABELS
FOR ALL SAFETY INFORMATION & INSTRUCTIONS.
WARNING
PERISTALTIC METERING PUMPS SINCE 1957
SVP SERIES
PERISTALTIC METERING PUMPS
IN TALLATION AND MAINTENANCE MANUAL

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TABLE OF CONTENTS
Warranty and Service Policy ................................................................. 3
Safety Information.................. cover, 4-6, 9, 10, 12-16, 18, 19, 21-23, 30
Flow Rate Outputs ............................................................................... 6
Materials of Construction .................................................................... 7
Accessories ........................................................................................ 8
Installation..................................................................................... 9-18
Troubleshooting ............................................................................ 19-21
Subassembly Connections.................................................................. 22
Tube Replacement ........................................................................ 23-29
Cleaning Point of injection............................................................ 30-32
Parts ........................................................................................... 33-37
IM VP 042021

WARRANTY AND CUSTOMER SERVICE
LIMITED WARRANTY
Stenner Pump Company will for a period of one (1) year from the date of purchase (proof
of purchase required) repair or replace, at our option, all defective parts. Stenner is not
responsible for any removal or installation costs. Pump tube assemblies and rubber
components are considered perishable and are not covered in this warranty. Pump tube
will be replaced each time a pump is in for service, unless otherwise specified. The cost of
the pump tube replacement will be the responsibility of the customer. Stenner will incur
shipping costs for warranty products shipped from our factory in Jacksonville, Florida. Any
tampering with major components, chemical damage, faulty wiring, weather conditions,
water damage, power surges, or products not used with reasonable care and maintained in
accordance with the instructions will void the warranty. Stenner limits its liability solely to
the cost of the original product. We make no other warranty expressed or implied.
RETURNS
Stenner offers a 30-day return policy on factory direct purchases. xcept as otherwise
provided, no merchandise will be accepted for return after 30 days from purchase. To
return merchandise at any time, call Stenner at 800.683.2378 for a Return Merchandise
Authorization (RMA) number. A 15% re-stocking fee will be applied. Include a copy of your
invoice or packing slip with your return.
DAMAGED OR LOST SHIPMENTS
Check your order immediately upon arrival. All damage must be noted on the delivery
receipt. Call Stenner Customer Service at 800.683.2378 for all shortages and damages
within seven (7) days of receipt.
SERVICE & REPAIRS
Before returning a pump for warranty or repair, remove chemical from pump tube by
running water through the tube, and then run the pump dry. Following expiration of the
warranty period, Stenner Pump Company will clean and overhaul any Stenner metering
pump for a minimum labor charge plus necessary replacement parts and shipping. All
metering pumps received for overhaul will be restored to their original condition. The
customer will be charged for missing parts unless specific instructions are given. To return
merchandise for repair, call Stenner at 800.683.2378 or 904.641.1666 for a Return
Merchandise Authorization (RMA) number.
DISCLAIMER
The information contained in this manual is not intended for specific application purposes.
Stenner Pump Company reserves the right to make changes to prices, products, and
specifications at any time without prior notice.
TRADEMARKS
QuickPro®is a registered trademark of the Stenner Pump Company.
Santoprene®is a registered trademark of xxon Mobil Corporation.
Versilon®is a registered trademark of Saint-Gobain Performance Plastics.
Pellethane®is a registered trademark of Lubrizol Advanced Materials, Inc.
AquaShield™is a trademark of Houghton International.
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Warns about hazards that CAN cause death, serious personal
injury, or property damage if ignored.
ELECTRIC SHOCK HAZARD
ELECTRIC SHOCK HAZARD:
Pump supplied with grounding power cord and attached plug. To reduce risk of
electrical shock, connect only to a properly grounded, grounding type receptacle.
Install only on a circuit protected by a Ground-Fault Circuit-Interrupter (GFCI).
DANGER DE CHOC ÉLECTRIQUE:
La pompe est dotee d’un cordon d’alimentation avec mise ala terre muni d'une
fiche. Pour reduire le risque de choc electrique, branchez uniquement sur une prise
correctement mise ala terre. Installez uniquement sur un circuit protegepar un
disjoncteur differentiel.
DO NOT alter the power cord or plug end.
DO NOT use receptacle adapters.
DO NOT use pump with a damaged or altered power cord or plug. Contact the
factory or an authorized service facility for repair.
HAZARDOUS VOLTAGE:
DISCONNECT power cord before removing motor cover for service. Electrical
service by trained personnel only.
EXPLOSION HAZARD:
This equipment IS NOT explosion proof. DO NOT install or operate in an
explosive environment.
RISK OF CHEMICAL EXPOSURE:
Potential for chemical burns, fire, explosion, personal injury, or property damage. To
reduce risk of exposure, the use of proper personal protective equipment is mandatory.
RISK OF FIRE HAZARD:
DO NOT install or operate on any flammable surface.
To reduce the risk of injury, do not permit children to use this
product. This appliance is not to be used by persons with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction.
VAC MODELS ONLY
SAFETY INFORMATION
IMPORTANT SAFETY INSTRUCTIONS
When installing and using this electrical equipment, basic safety precautions
should always be followed, including the following:
READ AND FOLLOW ALL INSTRUCTIONS

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SAFETY INFORMATION continued
NOTICE: Indicates special instructions or general mandatory action.
NOTICE: This metering pump is portable and designed to be removable from the
plumbing system without damage to the connections.
NOTICE: Before installing or servicing the pump, read the pump manual for all safety
information and complete instructions. The pump is designed for installation and
service by properly trained personnel.
NOTICE: Installation and product must adhere to all regulatory and compliance
codes applicable to the area.
NOTICE: This metering pump and its components have been tested for use with the
following chemicals: Sodium Hypochlorite (10-15%), Muriatic Acid (20-22% Baume,
31.5% HCl), and Soda Ash.
AVIS: Cette pompe de dosage et ses composants ont etetestes pour leur
compatibiliteavec les produits chimiques suivants : hypochlorite de sodium (10 a15
%), acide chlorhydrique (20 a22 % Baume, 31,5 % HCl), et carbonate de sodium.
This is the safety alert symbol. When displayed in this manual or on the
equipment, look for one of the following signal words alerting you to the
potential for personal injury or property damage.
PUMP SUITABLE FOR INDOOR USE.
Pompe adaptee aune utilisation al’interieur.
lectrical installation should adhere to all national and local codes. Consult a
licensed professional for assistance with proper electrical installation.
Pump uses a class 2 auto switching power supply for AC input voltage rated
100-240VAC.
SAVE THESE INSTRUCTIONS
VAC MODELS ONLY

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FLOW RATE OUTPUTS
Item Number Pump Gallons Gallons Ounces Liters Liters Milliliters
Prefix Tube per Day per Hour per Minute per Day per Hour per Minute
SVP1L1 1 0.3-5.0 0.01-0.21 0.03-0.44 1.1-18.9 0.05-0.79 0.76-13.13
SVP1L2 2 0.8-17.0 0.03-0.71 0.07-1.51 3.0-64.4 0.13-2.68 2.08-44.65
SVP1L3 3 2.0-40.0 0.08-1.67 0.18-3.55 7.6-151.4 0.32-6.31 5.27-105.14
SVP1L4 4 3.0-60.0 0.13-2.50 0.27-5.33 11.4-227.1 0.48-9.46 7.92-157.71
SVP1L5 5 4.3-85.0 0.18-3.54 0.38-7.55 16.3-321.8 0.68-13.40 11.32-223.40
SVP4L1 1 0.3-5.0 0.01-0.21 0.03-0.44 1.1-18.9 0.05-0.79 0.76-13.13
SVP4L2 2 0.8-17.0 0.03-0.71 0.07-1.51 3.0-64.4 0.13-2.68 2.08-44.65
SVP4L3 3 2.0- 40.0 0.08-1.67 0.18-3.55 7.6-151.4 0.32-6.31 5.27-105.14
SVP4L4 4 3.0-60.0 0.13-2.50 0.27-5.33 11.4-227.1 0.48-9.46 7.92-157.71
SVP4L5 5 4.3-85.0 0.18-3.54 0.38-7.55 16.3-321.8 0.68-13.40 11.32-223.40
25 psi (1.7 bar) maximum
Approximate Outputs @ 50/60Hz
NOTICE: The information within this chart is solely intended for use as a guide. The output data is an approximation based on
pumping water under a controlled testing environment. Many variables can affect the output of the pump. Stenner Pump
Company recommends that all metering pumps undergo field calibration by means of analytical testing to confirm their outputs.
*Input Signal Voltage/Resistance maximum 48VDC/128 ohm.
NOT : Duckbill check valve included with pumps rated 100 psi (6.9 bar) maximum.
4-20mA input*Manual
Item Number Pump Gallons Gallons Ounces Liters Liters Milliliters
Prefix Tube per Day per Hour per Minute per Day per Hour per Minute
SVP1H1 1 0.3-5.0 0.01-0.21 0.03-0.44 1.1-18.9 0.05-0.79 0.76-13.13
SVP1H2 2 0.8-17.0 0.03-0.71 0.07-1.51 3.0-64.4 0.13-2.68 2.08-44.65
SVP1H7 7 2.0-40.0 0.08-1.67 0.18-3.55 7.6-151.4 0.32-6.31 5.27-105.14
SVP4H1 1 0.3-5.0 0.01-0.21 0.03-0.44 1.1-18.9 0.05-0.79 0.76-13.13
SVP4H2 2 0.8-17.0 0.03-0.71 0.07-1.51 3.0-64.4 0.13-2.68 2.08-44.65
SVP4H7 7 2.0-40.0 0.08-1.67 0.18-3.55 7.6-151.4 0.32-6.31 5.27-105.14
100 psi (6.9 bar) maximum
4-20mA input*Manual
Approximate Outputs @ 50/60Hz

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MATERIALS OF CONSTRUCTION
All Housings
Polycarbonate
Pump Tube
Santoprene®(FDA approved) or Versilon®
Check Valve Duckbill
Santoprene®(FDA approved) or Pellethane®
uction/Discharge Tubing & Ferrules
Polyethylene (FDA approved)
uction Line trainer and Cap
PVC or Polypropylene (both NSF listed); ceramic weight
All Fasteners
Stainless Steel
Tube and Injection Fittings
PVC or Polypropylene (both NSF listed)
Connecting Nuts and 3/8" Adapter
PVC or Polypropylene (both NSF listed)
Pump Head Latches
Polypropylene *

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ACCESSORIES
3 Connecting Nuts 1/4" or 3/8"
3 Ferrules 1/4" or 6 mm Europe
1 Injection Fitting 25 psi (1.7 bar) max. or 1 Duckbill Check Valve 100 psi (6.9 bar) max.
1 Weighted Suction Line Strainer 1/4", 3/8" or 6 mm Europe
1 20' Roll of Suction/Discharge Tubing
1/4" or 3/8" White or UV Black or 6 mm White Europe
1 Additional Pump Tube
2 Additional Latches
1 Mounting Bracket
1 Manual
1 4-20mA input signal cord (included with SVP 4-20mA pump)

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INSTALLATION
ADDITIONAL SAFETY INSTRUCTIONS
NOTICE: Indicates special instructions or general mandatory action.
Read all safety hazards before installing or servicing the pump. The pump is
designed for installation and service by properly trained personnel.
Use all required personal protective equipment when working on or near a chemical
metering pump.
Install the pump so that it is in compliance with all national and local plumbing
and electrical codes.
Use the proper product to treat potable water systems, use only chemicals listed or
approved for use.
Install the pump to work in conjunction with well pump or system controls.
Inspect tube frequently for leakage, deterioration, or wear. chedule a regular pump
tube maintenance change to prevent chemical damage to pump and/or spillage.
Pump is not recommended for installation in areas where leakage can cause
personal injury or property damage.

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INSTALLATION continued
MODES OF OPERATION
Manual
The pump is operated by manually adjusting the motor speed with the keypad. SVP Manual
pumps and SVP 4-20mA pumps.
Automatic
The pump is paced by an external 4-20mA signal, L D light illuminate. SVP 4-20mA pumps.
MOUNT PUMP
elect a dry location (to avoid water intrusion and pump damage) above the
solution tank.
To prevent pump damage in the event of a pump tube leak, never mount the pump
vertically with the pump head up.
To avoid chemical damage from fumes, DO NOT mount pump directly over an open
solution tank. Keep tank covered.
Avoid flooded suction or pump mounted lower than the solution container. Draw
solution from the top of the tank. Pump can run dry without damage. If pump is
installed with a flooded suction, a shut-off valve or other device must be provided to
stop flow to pump during service.
DO NOT allow water intrusion into the motor or corrosion and damage will occur.
4-20mA Mode Light
Increase Speed
Decrease Speed
Power
Prime
SVP Keypad
Flow Rate Output Percentage

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INSTALLATION DIAGRAM
Grounded Power Outlet;
protected by Ground-Fault
Circuit-Interrupter (GFCI)
Solution Tank
1/4" Connections
Disassembled View
Shut-Off Valve
Discharge Line
Suction Line
Injection
Fitting
25 psi
maximum
Duckbill
Check Valve
100 psi
maximum
Flow direction
of solution
Disassembled View
Duckbill
Duckbill Check Valve
or Injection Fitting
VAC MODELS ONLY

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SAFETY INFORMATION
RISK OF EQUIPMENT MALFUNCTION OR DAMAGE
DO NOT connect input signal cord to any AC electrical supply.
DO NOT exceed 48VDC input signal.
RISQUE DE DEFAUT DE FONCTIONNEMENT OU DE
DOMMAGES A L’EQUIPEMENT
NE AMAIS connecter le cordon du signal d’entrée à n’importe quelle source de
courant alternatif.
NE PAS excéder le signal d’entrée 48VDC.
NOTICE: Indicates special instructions or general mandatory action.
Pump is not a source or power supply for the 4-20mA signal loop. Refer to input
signal specifications.
Pump and input signal must be “OFF” prior to connecting input signal. Failure to
follow this warning may result in microcontroller corruption and erratic operation.
Failure to connect input signal with proper polarity will result in the pump not
responding to the input signal.
The L D display can vary if the pump is exposed to a 9-30MHz signal when
operating in the “automatic” mode.
Notification: Indique des instructions spéciales ou l'action obligatoire générale.
La pompe n’est pas une source ni une alimentation en courant pour la boucle de
signal 4 à 20mA. Consulter les spécifications du signal d’entrée.
Mettre sur Arrêt (“OFF”) la pompe et le signal d’entré e, avant d’effectuer la
connexion du cordon du signal d’entrée. Si cette précaution n’est pas prise, la
micro-contrôleur risque d’être corrompu et le fonctionnement irrégulier.
Si le signal d’entrée n’est pas connecté à la polarité appropriée, la pompe ne réagira
pas à ce signal.
L’afficheur L D peut varier si la pompe est exposée à un signal 9-30MHz en
fonctionnant en mode “automatique.”

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INSTALLATION continued
VERIFY VOLTAGE AND POWER
To prevent motor damage, verify with a volt meter that the receptacle voltage
corresponds with the pump voltage.
1. Plug cord into receptacle.
2. Press the ON/OFF button located on the keypad to verify the unit is turned on. Red
L D display will light up when supply voltage is present and unit is turned ON.
VP Manual Pump
The SVP Manual pump (identified by the SVP1 prefix) does not have 4-20mA
capabilities and only operates in manual mode of operation. The output can be
incremented through its available speed range by utilizing the UP/DOWN keys on
the keypad. Press ON/OFF button again to turn the metering pump off.
VP 4-20mA Pump
• The manual mode of operation is also available with the SVP 4-20mA pump
(identified by the SVP4 prefix). To change to automatic mode of operation,
simultaneously press both the UP and DOWN keys and hold for two seconds.
Then mode of operation will change and be indicated by a small L D light
located at the left side of the display. Any settings entered in the variable speed
mode will remain in memory.
• If using the automatic mode of operation (4-20mA DC analog signal), plug the
input signal connector (10' cable) to the receptacle located on the front of the
pump beneath the pump head. Connect the jacketed cable to the supply
conductor (4-20mA source) ensuring proper polarity. Red is positive, black is
negative. Press ON/OFF button again to turn the metering pump off.
More on next page

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INSTALLATION continued
INSTALL SUCTION LINE TO PUMP HEAD
1. Uncoil the suction/discharge line. Use outside of solution tank as a guide to cut
proper length of suction line ensuring it will be 2-3" above the bottom of solution tank.
Allow sufficient slack to avoid kinks and stress cracks. Always make a clean
square cut to assure that the suction line is burr free. Normal maintenance
requires trimming.
Suction lines that extend to the bottom of the tank can result in debris pickup
leading to clogged injectors and possible tube failure.
2. Make connections by sliding the line(s) through connecting nut*and ferrule and
finger tighten to the corresponding tube fittings.
3. Finger tighten nut to the threaded tube fitting while holding the tube fitting.
Over tightening the ferrule and nut may result in damaged fittings, crushed
ferrules, and air pick up.
DO NOT use thread seal tape on pump tube connections.
More on next page
Suction
Line
Discharge
Line
* For 3/8" connections only. Slide line through 3/8" connecting nut and finger tighten to male end of adapter or
pump tube fitting. While firmly holding the adapter or tube fitting, wrench tighten the 3/8" connecting nut one
additional half turn. If leak occurs, gradually tighten the 3/8" connecting nut as required.
Finger tighten
1/4" nut
Ferrules
Connecting Nut
NOT : Beveled ends of
ferrules face pump. Tubing
should bottom into all fittings.
DO NOT use thread seal tape
on pump tube threads.

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INSTALLATION continued
INSTALL SUCTION WEIGHT TO SUCTION LINE
1. Drill a hole into the bung cap or solution tank lid. Slide the tubing through and secure
the weighted strainer to the line.
2. To attach the strainer, slide approximately 3.5" of tubing through the collet and lock
into place on strainer body. Pull tubing to make sure it is secure.
3. Suspend slightly above tank bottom to reduce the chance of sediment pickup.
DO NOT mix chemicals in the solution container. Follow recommended mixing
procedures according to the manufacturer.
DO NOT operate pump unless chemical is completely in solution. Turn pump off
when replenishing solution.
DO NOT slide tubing all the way to the bottom of the weighted strainer. Tubing
could become flush with the nose of the strainer and the pump may not prime
due to blockage.
More on next page
3"
Suction Line
3.5"
(9 cm)
Weighted
Suction Line
Strainer

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INSTALLATION continued
INSTALL DISCHARGE LINE TO PUMP HEAD AND IN ECTION POINT
1. Make a secure finger tight connection on the discharge fitting of the pump head as
instructed in Install Suction Line instructions.
DO NOT use thread seal tape on pump tube connections.
HAZARDOUS PRESSURE: Shut off water or circulation system
and bleed off any system pressure.
Locate a point of injection beyond all pumps and filters or as determined by
the application.
2. A 1/4" or 1/2" Female NPT (FNPT) connection is required for installing the injection
fitting. If there is no FNPT fitting available, provide one by either tapping the pipe or
installing FNPT pipe tee fitting.
3. Wrap the Male NPT (MNPT) end of injection fitting with 2 or 3 turns of thread seal
tape. If necessary, trim the injection fitting quill as required to inject product directly
into flow of water.
More on next page
Trim Injection Fitting
Duckbill
Check Valve
Shut-Off Valve
1/4" or
1/2" FNPT
Reduction
Bushing
Typical Point of Injection
DO NOT use thread seal tape
on pump tube threads.

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INSTALLATION continued
4. Hand tighten the injection fitting into the FNPT fitting.
Injection Fitting
a. Install connecting nut and ferrule to the pump discharge line. Insert discharge
line into injection fitting until it reaches base of fitting.
b. Finger tighten connecting nut to fitting. For 3/8" connections wrench tighten
one additional 1/2 turn. If leak occurs, gradually tighten the 3/8" connecting
nut as required.
Duckbill Check Valve
a. Prior to connection, test injection check valve and NPT threads for leaks by
pressurizing system. If necessary, tighten an additional 1/4 turn.
b. Install connecting nut and ferrule to the pump discharge line. Insert discharge
line into check valve body until it reaches base of body.
c. Finger tighten connecting nut to fitting. For 3/8" connections wrench tighten
one additional 1/2 turn. If leak occurs, gradually tighten the 3/8" connecting
nut as required.
5. Turn pump on and re-pressurize system. Press and hold the PRIM button on the
keypad and allow the pump to fully prime. The Prime key will operate the pump at
100% but will not display 100% on the keypad. Observe chemical flow as actuated
by system and check all connections for leaks.
VP Manual Pump
Use the manual mode of operation to set the metering pump to the desired
speed required for the application. This is the initial setting. Check the entire
system for leaks. Proceed to Step 6.
More on next page

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INSTALLATION continued
VP 4-20mA Pump
For automatic mode of operation, verify that the 4-20mA L D light is displayed on
the keypad. Provide the required signal for the automatic mode of operation. The
pump will respond to the 4-20mA input signal and pace accordingly. Proceed to
Step 6.
•4.0-4.7mA = OFF or 0% motor speed.
•4.8-19.9mA: the pump will operate in 1% increments every 0.16mA.
•Above 19.9mA the pump will operate at 100% motor speed.
•The pump’s minimum speed is 5% @ 4.8mA.
6. After suitable amount of dosing time, perform tests for desired chemical readings
(e.g., pH or ppm). If necessary, fine tune dosing or adjust solution strength.
The injection point and fitting require periodic maintenance to clean any
deposits or buildup. To allow quick access to the point of injection, Stenner
recommends the installation of shut-off valves.
5%
25%
50%
75%
100%
4.9 12 20 mA Input Signal
Feed Rate

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TROUBLESHOOTING MOTOR
HAZARDOUS VOLTAGE:
DISCONNECT power cord before removing motor cover for service. Electrical service
should be performed by trained personnel only.
KEYPAD/DISPLAY
PROBLEM POSSIBLE CAUSE SOLUTION
Display is blank No power cord connection point Check voltage of receptacle/controller
output voltage
Pump is off Press ON/OFF key
Failed power supply Check power supply; Green L D “ON” with
power applied
Check 12VDC output to board
No response to 4-20mA signal Not in “AUTOMATIC” nsure display has a small L D light located
in upper left-hand corner indicating pump is
in “AUTOMATIC
Display reads “00” and does Pump is in “AUTOMATIC” mode Place pump in “MANUAL” mode
not respond when pressing of operation
up/down keys
DC MOTOR
PROBLEM POSSIBLE CAUSE SOLUTION
Display working; pump is not Worn motor brushes Inspect brushes for wear, replace if needed
Failed DC motor Replace DC gear motor if brushes are good
Pump cycles ON/OFF Failed DC fan Check fan operation; Replace as required

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TROUBLESHOOTING PUMP HEAD
PROBLEM POSSIBLE CAUSE SOLUTION
Roller Assembly Stripped or cracked Replace roller assembly
will not expand or roller assembly hub
collapse with
tube housing cover
Components cracking Chemical attack Check chemical compatibility
Chemical intrusion from tube failure Identify and correct cause. Clean components
of chemical and replace tube and ferrules
according to manual.
Pump head leaking Pump tube rupture Identify and correct cause. Clean components
of chemical and replace tube and ferrules
according to manual.
No pump output, Roller assembly xpand roller assembly using
pump head rotates not fully expanded pump head cover as a tool,
according to manual
Depleted solution tank or weighted Replenish solution and position suction line
strainer is above solution 3" above bottom of tank
Leak in the suction line or Correct or replace suction line
at connections and/or connections
Ferrules installed incorrectly, Replace ferrules, beveled end faces pump
missing or damaged
Sleeve and/or plastic gripper inside Replace if damaged or missing. Reorient if
3/8" connecting nut is missing incorrectly assembled; gripper beveled end
damaged, or incorrectly assembled faces nut; sleeve wide end faces gripper
Injection point is clogged Inspect and clean injection point
Clogged suction and/or discharge Clean and/or replace as needed
line and/or check valve
Life of pump tube exhausted Replace tube and ferrules according to manual and
schedule tube replacement based on application
Suction line is flush with the nose of the Pull suction line approximately 1" from bottom of
weighted strainer tubing at an angle strainer, cut bottom of suction at an angle
Low pump output, Life of pump tube exhausted Replace tube and ferrules according to manual and
pump head rotates schedule tube replacement based on application
Rollers worn or broken Replace roller assembly
Injection point is restricted Inspect and clean injection point regularly
Incorrect tube size or setting Refer to pump output chart and determine setting
or replace tube & ferrules
High system back pressure Verify system pressure against tube psi,
replace tube and ferrules
No pump output, Stripped or cracked Replace roller assembly
pump head roller assembly hub
doesn’t rotate Motor problem Refer to motor troubleshooting
Pump output high Incorrect tube size or setting Refer to pump output chart and determine setting
or replace tube and ferrules
Roller assembly broken Replace roller assembly