Hearth & Home heatilator ECO CHOICE PS35 Programming manual

June 17, 20197058-803B1
Eco Choice Pellet
Troubleshooting Manual
(THIS MANUAL IS INTENDED FOR TRAINED & QUALIFIED DEALERS &
TECHNICIANS USE ONLY)

June 17, 20197058-803B2
ECO CHOICE PELLET
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Indicates practices which may cause damage to the appliance or to property.
TABLE OF CONTENTS
1 Normal Operation Sequence .......................................3
2 Basic Troubleshooting & Repair ....................................5
3 Feed System ....................................................6
4 Igniter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Exhaust Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Convection Blower ..............................................12
7 Power Supply...................................................14
8 Thermostat.....................................................16
9 Thermocouple ..................................................18
10 Firebox Vacuum & Vacuum Switch ................................20
11 Complete Wiring Diagram........................................ 22
12 General Specications ..........................................23
13 Exploded View & Service Parts ................................... 24
A. PS35-C ................................................................................24
B. PS50-C ................................................................................29
C. CAB50-C ...............................................................................34
13 Tech Check Sheet ..............................................39
14 Cleaning & Maintenance Tips..................................... 40
15 Service Repair Tools ............................................41
16 Notes.........................................................42

June 17, 2019 7058-803B 3
ECO CHOICE PELLET
1 Normal Operation Sequence
1. Thermostat turns on. Red call light illuminates on the
stove.
THERMOSTAT
High
Med
Low
Reset
Button
INSIDE OUTSIDE
2. Exhaust blower turns on.
3. Igniter turns on.
4. The vacuum switch closes.
5. The feed motor turns on. The initial feed of the feed
motor will last approximately 54 seconds and then
stops.
6. Pellets will ignite in the re pot.
7. Heat from re turns on the green thermocouple light
in the control box (2.7mVDC).
8. Feed motor starts its cycle mode (each cycle is 7 sec):
“ON” TIMES PS35 PS50 & CAB50
SETTING SECONDS SECONDS
LOW 0.9 1.1
MEDIUM 1.6 1.9
HIGH 2.2 2.7

June 17, 20197058-803B4
ECO CHOICE PELLET
9. Heat from the re turns on the red thermocouple light
in the control box.
10. The igniter turns o󰀨
11. Heat from the re closes the #1 snap disc.
12. The convection blower will turn on.
13. Room reaches temperature
14. Thermostat will turn o󰀨.
THERMOSTAT
15. The red call light will turn o󰀨.
High
Med
Low
Reset
Button
INSIDE OUTSIDE
16. Feed motor will turn o󰀨.
17. The exhaust blower will start a 18 minute countdown.
18. The #1 snap disc cools o󰀨
19. The convection blower shuts o󰀨
20. The end of the cycle; the appliance is now ready for
another call for heat.

June 17, 2019 7058-803B 5
ECO CHOICE PELLET
A. Plug in stove with no response
1. Check the power supply for 115 volts
2. Check the fuse in the junction box (7amps)
3. Check snap disc #3 for power
4. Check control box
B. Call light on with no re and no fuel in re pot
1. Check hopper for bridging of pellets
2. Push reset button and adjust feed adjustment plate
3. Check thermocouple
4. Check venting system for obstructions
5. Check vacuum switch and vacuum hose
6. Check feed motor
7. Check exhaust blower
C. Call light on with no re and partially burned fuel
in re pot
1. Check repot and clean
2. Check thermocouple
-Green light - 2.7 mV (±.5mV)
-Red light - 12.1 mV (± 1mV)
3. Check initial feed time (54 - 60 seconds)
D. Call light is on with no re and fuel in the re pot
1. Check repot for “clinker” material
2. Clean repot
3. Check igniter
4. Check control box
E. Slow or smoky start-up
1. Clean repot
2. Feed adjustment plate may be set too high
3. Check exhaust blower and heat exchanger
G. Feed system fails to start
1. Check front door and make sure it is closed
2. Check to see if the call light is on
3. Check the thermostat, #2 snap disc, and
hopper switch
4. Check feed motor and vacuum switch
5. Check exhaust system for obstructions
H. Thermostat will not start appliance
1. Check the power to the stove
2. Check the thermostat wires for continuity
3. Check the hopper switch
4. Check the reset button
5. Check the control box
F. Stove Runs for 18 minutes then stops feeding fuel
1. Check thermocouple
-Green light - 2.7 mVDC (±.5mV)
-Red light - 12.1 mVDC (± 1mV)
2. Adjust feed adjustment plate for larger re
3. Check thermocouple cover
- Cover needs to touch the end of the
thermocouple wire
- Cover should extend 1 inch into the repot
4. Check the control box
2 Basic Troubleshooting & Repair
I. Appliance fails to shut o󰀨
1. Check the thermostat and thermostat wire
2. Check the junction box and wire harness
3. Check the control box
J. Convection blower keep running or fails to start
1. Check the #1 snap disc
2. Check convection blower
3. Check for voltage to the #1 snap disc
K. Appliance cycles on and o󰀨 with the thermostat is
always on
1. Check the control box
2. Check the vacuum switch or hopper switch
3. Check wiring for loose connections
L. Large re, ash build up and dirty glass
1. Check repot, may need to be cleaned
2. Clean exhaust and heat exchanger system
3. Adjust feed adjustment plate in the hopper
4. Check control box feed times:
M. Appliance ignites then goes out but call light is
still on
“STOVE IS INCONSISTENT IN OPERATION“
1. Inspect thermocouple and its position over the pot
2. Check the feed motor
3. Adjust feed adjustment plate for a larger re
4. Check the exhaust and heat exchanger system
5. Check the vacuum switch
“ON” TIMES PS35 PS50 & CAB50
SETTING SECONDS SECONDS
LOW 0.9 1.1
MEDIUM 1.6 1.9
HIGH 2.2 2.7

June 17, 20197058-803B6
ECO CHOICE PELLET
3 Feed System
TECH TIP:
MAKE SURE THE
FEED SYSTEM IS
CLEAN AND FREE
OF OBSTRUCTIONS
BEFORE
TROUBLESHOOTING
TURN ON THE
T-STAT & APPLIANCE
SYSTEM IS
REPAIRED
IS THE AUGER
TURNING? YES
NO
CHECK FEED
MOTOR. IS THERE
115VAC AT FEED
MOTOR?
REPLACE THE FEED
MOTOR
REPLACE THE
VACUUM SWITCH
REPLACE #2 SNAP
DISC
REPLACE RESET
BUTTON
REPLACE THE WIRE
HARNESS
REPLACE THE
CONTROL BOX
CHECK VACUUM
SWITCH
BAD
GOOD
CHECK #2 SNAP
DISC
CHECK RESET
BUTTON
CHECK THE
WIRE HARNESS &
CONNECTIONS
BAD
BAD
BAD
GOOD
GOOD
GOOD
YES
NO
PS35 & PS50
HOPPER SWITCH
SRV7000-612
CAB50
HOPPER SWITCH
SRV7000-375
HOPPER SWITCH
WIRE HARNESS
SRV7074-175

June 17, 2019 7058-803B 7
ECO CHOICE PELLET
FEED MOTOR
VACUUM
SWITCH
#2 SNAP
DISC
JUNCTION BOX
PS35 & PS50 FEED MOTOR CIRCUIT
WHITE
WHITE
BLACK
ORANGE
RED
RED
RED
WHITE
BLACK
BLACK
RED
BLACK
FUSE
T.C.
CAPACITOR
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15
FEED MOTOR
VACUUM SWITCH
HOPPER
SWITCH
HOPPER
SWITCH WIRE
HARNESS
#2 SNAP
DISC
JUNCTION BOX
CAB50 FEED MOTOR CIRCUIT
WHITE
WHITE
BLACK
WHITE
BLACK
BLACK
RED
BLACK
FUSE
T.C.
CAPACITOR
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15
ORANGE
RED
RED
RED
FEED MOTOR TESTING WITH TEST BOX
(IN CONJUNCTURE TO THIS SERVICE MANUAL USE THE INSTRUCTION SHEET FOR THE TEST
BOX KIT)
1. Unplug the appliance, remove the control box, install the test box, and plug the appliance back in.
2. Turn on the exhaust blower switch; this will active the vacuum switch to close.
3. Turn on the thermostat - the thermostat indicator light should come on.
4. Turn on the feed motor switch.
- If the feed system does come on:
– Replace the control box
- If the feed system does not come on:
– Check the feed motor
– Check the vacuum switch
– Check the #2 snap disc
– Check the wire harness

June 17, 20197058-803B8
ECO CHOICE PELLET
4 Igniter
TECH TIP:
MAKE SURE THE
FIREPOT AND
SURROUNDING
AREA IS CLEAN
BEFORE
TROUBLESHOOTING
IS VOLTAGE PRESENT?
IS THERE CONTINUITY
PRESENT?
CONNECT A MULTIMETER TO
THE IGNITER WIRE HARNESS
CONNECT A MULTIMETER TO
THE IGNITER
IS THERE POWER TO THE
APPLIANCE?
IS THE IGNITER
GETTING HOT
AFTER 60
SECONDS?
IS THE GREEN
CALL LIGHT
ILLUMINATED ON
THE CONTROL
BOX?
NO
NO
REPLACE THE
CONTROL BOX
yes
YES
YES
YES
no
CHECK THE IGNITER WIRE
HARNESS
IS THE WIRING BROKEN?
REPAIR OR
REPLACE THE
WIRE HARNESS
REPLACE THE
IGNITER
CHECK POWER
NO
NO
NO
SYSTEM IS
REPAIRED
YES
YES
SAFETY
NOTE: DO NOT touch
igniter for it will be
hot and burn you.
TURN ON
THE T-STAT &
APPLIANCE

June 17, 2019 7058-803B 9
ECO CHOICE PELLET
JUNCTION BOX
IGNITER CIRCUIT
FUSE
T.C.
IGNITER
HIGH-TEMP
HIGH-TEMP
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15
IGNITER TESTING WITH TEST BOX
(IN CONJUNCTURE TO THIS SERVICE MANUAL USE THE INSTRUCTION SHEET FOR THE TEST
BOX KIT)
1. Unplug the appliance, remove the control box, install the test box, and plug the appliance back in.
2. Turn on the thermostat switch (the thermostat indicator light should come on).
3. Turn the igniter switch on.
- If the igniter comes on:
– Replace the control box.
- If the igniter does not come on:
– Check the wire harness
– Replace the igniter

June 17, 20197058-803B10
ECO CHOICE PELLET
NOTE: OPEN CIRCUIT VOLTAGE IS MEASURED WITH THE BLOWER DISCONNECTED FROM THE WIRE
HARNESS. CLOSED CIRCUIT VOLTAGE IS MEASURED WITH THE BLOWER HOOKED UP TO THE
HARNESS. THE MEDIUM AND LOW VOLTAGES WILL BE 115 FOR THE FIRST 4:15 IF THE UNIT HAS
THE NEW CONTROL BOX (PART # 230-2070).
5 Exhaust Blower
PLUG STOVE IN
IS THE BLOWER
RUNNING? YES
NO
IS THERE 75 VAC OR
HIGHER GOING TO
THE BLOWER?
BAD
GOOD
CHECK WIRE
CONNECTIONS
BETWEEN THE
BLOWER AND THE
JUNCTION BOX
REPAIR OR
REPLACE THE WIRE
HARNESS
CHECK FOR
AIR PATH
RESTRICTIONS.
IS THE BLOWER &
EXHAUST SYSTEM
CLEAN?
SYSTEM IS
REPAIRED
YES
NO REPLACE THE
EXHAUST BLOWER
CLEAN THE
BLOWER AND
EXHAUST PATHS
REPLACE THE
CONTROL BOX
YESNO
TECH TIP:
MAKE SURE THE AIR
PATH IS FREE FROM
RESTRICTIONS
AND THE EXHAUST
SYSTEM IS
CLEAN BEFORE
TROUBLESHOOTING
PS35
EXHAUST BLOWER
812-4400
PS50 & CAB50
EXHAUST BLOWER
SRV7000-602

June 17, 2019 7058-803B 11
ECO CHOICE PELLET
FUSE T.C.
EXHAUST BLOWER CIRCUIT
EXHAUST
BLOWER
CONVECTION
BLOWER
JUNCTION BOX
BLUE
BLUE
WHITE
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15
EXHAUST BLOWER TESTING WITH TEST BOX
(IN CONJUNCTURE TO THIS SERVICE MANUAL USE THE INSTRUCTION SHEET FOR THE TEST
BOX KIT)
1. Unplug the appliance, remove the control box, install the test box, and plug the appliance back in.
2. Turn on the thermostat switch (the thermostat indicator light should come on).
3. Turn the exhaust blower switch on.
- If the blower comes on:
– Replace the control box
- If the blower does not come on:
– Check the wire harness
– Replace the blower

June 17, 20197058-803B12
ECO CHOICE PELLET
NOTE: The volt meter must have one lead connected to the white neutral wire from the power supply to be able to
read the correct voltage at the snap disc.
6 Convection Blower
ARE FUSES
GOOD?
ARE THE WIRE
CONNECTIONS
GOOD?
PLUG IN STOVE
IS THEIR POWER
PRESENT ON
BOTH SIDES?
IS THE BLOWER
RUNNING? YES
NO SYSTEM IS
REPAIRED
CHECK VOLTS
TO BLOWER. IS
THERE 60 VAC
OR HIGHER?
REPLACE THE WIRE
HARNESS
REPLACE THE
CONVECTION
BLOWER
YES
YES
YES
YES
NO
NO
NO
NO
REPLACE THE FUSES
REPLACE THE
CONTROL BOX
TECH TIP
INSTALLING A JUMPER
WIRE ON THE #1 SNAP
DISC PURPLE WIRES AND
THEN PLUGGING IN THE
APPLIANCE WILL TURN
ON THE BLOWER
PS35
CONVECTION BLOWER
812-4900
PS50 & CAB50
CONVECTION BLOWER
SRV7000-108

June 17, 2019 7058-803B 13
ECO CHOICE PELLET
7 AMP FUSE
JUNCTION BOX
HI / LOW SWITCH
FUSE
T.C.
PURPLE
PURPLE
WHITE
WHITE
#1 SNAP DISC
BLACK BLACK
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15
CONVECTION
BLOWER
CONVECTION BLOWER CIRCUIT
CONVECTION BLOWER TESTING WITH TEST BOX
(IN CONJUNCTURE TO THIS SERVICE MANUAL USE THE INSTRUCTION SHEET FOR THE TEST
BOX KIT)
1. Unplug the appliance, remove the control box, install the test box, and plug the appliance back in.
2. Install a jumper wire onto the #1 snap disc purple wires and then plug in the appliance.
3. Turn on the convection blower switch.
- If the blower comes on:
– Replace #1 snap disc
– Replace the control box
- If the blower does not come on:
– Check the wire harness
– Replace the blower

June 17, 20197058-803B14
ECO CHOICE PELLET
7 Power Supply
TECH TIP:
VERIFY OUTLET
FOR CONTINUITY
RESET #3 SNAP
DISC
CONSULT A LICENSED
ELECTRICIAN
PLUG IN STOVE
IS THERE POWER
PRESENT AT
THE BLACK
WIRE FROM THE
POWER CORD?
IS THERE
POWER
PRESENT AT THE
GRAY WIRE ON
THE 7 AMP FUSE
HOLDER?
IS THERE
POWER
PRESENT AT THE
GRAY WIRES ON
THE #3 SNAP
DISC?
REPLACE POWER
CORD
REPLACE THE FUSE
HOLDER
REPLACE CONTROL
BOX
REPLACE THE #3
SNAP DISC
REPLACE THE WIRE
HARNESS
IS THERE
CONTINUITY AT
PIN 5 (WHITE
WIRE TO THE
POWER CORD?
YES
NO SYSTEM IS
REPAIRED
IS THE #3 SNAP
DISC TRIPPED?
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
IS THE GREEN CALL
LIGHT ILLUMINATED
ON THE CONTROL
BOX?

June 17, 2019 7058-803B 15
ECO CHOICE PELLET
7 AMP FUSE
JUNCTION BOX
FUSE
T.C.
POWER SUPPLY CIRCUIT
POWER IN
WHITE
GREY
GREY
GREY
GREY
BLACK
GREEN
WHITE
GREEN
GREEN
#3 SNAP DISC
FEED MOTOR
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15
TEST POWER SUPPLY FOR CONTINUITY
1. Unplug the power cord from the wall
2. Add a jumper wire on the end of the power cord.
3. Set the volt meter to OHMs and put the probes on pin 5 and pin 12 of the junction box.
- If the circuit is complete, the reading should be “0”

June 17, 20197058-803B16
ECO CHOICE PELLET
8 Thermostat
TECH TIP:
SUGGEST USING A JUMPER
WIRE TO CLOSE CIRCUITS WITH
THE TESTS POINTS (JUNCTION
BOX, THERMOSTAT BLOCK,
#2 SNAP DISC, AND RESET
BUTTON).
UNPLUG APPLIANCE, REMOVE CONTROL BOX, TURN ON
THERMOSTAT, AND INSTALL JUMPER WIRE AT THERMOSTAT
IS THE THERMOSTAT
TURNING ON & OFF
THE APPLIANCE? YES
NO
IS THERE
CONTINUITY AT
PINS 7 & 9 ON
THE JUNCTION
BOX?
SYSTEM IS
REPAIRED
REMOVE
THERMOSTAT
WIRES FROM
THERMOSTAT
BLOCK &
INSTALL JUMPER
WIRE (7 & 9)..
INSTALL
A JUMPER
WIRE ON THE
THERMOSTAT
BLOCK
INSTALL
A JUMPER
WIRE ON THE
THERMOSTAT
BLOCK & RESET
BUTTON (7 & 9).
IS THERE
CONTINUITY?
IS THERE
CONTINUITY AT
PINS 7 & 9 ON
THE JUNCTION
BOX?
IS THERE
CONTINUITY AT
PINS 7 & 9 ON
THE JUNCTION
BOX?
YES
YES
YES
YES
NO
NO
NO
NO
REPLACE THE
CONTROL BOX
REPLACE THE
THERMOSTAT
REPLACE THE
THERMOSTAT WIRES
REPLACE THE RESET
BUTTON
REPLACE THE
JUNCTION BOX

June 17, 2019 7058-803B 17
ECO CHOICE PELLET
FUSE
T.C.
THERMOSTAT
BLOCK
JUNCTION BOX
THERMOSTAT CIRCUIT
CALL LIGHT
RESET BUTTON
3 POSITION
ROCKER
SWITCH
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
WHITE
RED
RED
BLACK
YELLOW
WR
WR
THERMOSTAT
BLOCK
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15
WHITE
TEST POWER SUPPLY FOR CONTINUITY
1. Unplug stove, remove control box, install test box & plug appliance back into power source.
2. Turn on the thermostat.
- If the thermostat light comes on; replace the control box
- If the thermostat light does no come on; refer to thermostat circuit troubleshooting on page 16.

June 17, 20197058-803B18
ECO CHOICE PELLET
9 Thermocouple
TECH TIP:
SET VOLT METER TO
MILLIVOLTS (DC)
PLUG IN STOVE
YES
NO
IS THE GREEN CALL
LIGHT ILLUMINATED
ON THE CONTROL
BOX?
IS THERE A FIRE
IN THE FIRE
POT?
IS THERE
3mVDC AT THE
THERMOCOUPLE
WIRE
CONNECTION
POINTS AT THE
JUNCTION BOX?
YES
YES
NO
NO
ARE THE
TERMINAL
CONNECTIONS
ON THE
JUNCTION BOX
LOOSE?
SECURE
THERMOCOUPLE
WIRE ENDS
PROPERLY.
REPLACE THE
THERMOCOUPLE
REPLACE THE
CONTROL BOX
NOTE: The thermocouple is made up of two dissimilar metals that when joined together will produce a small
amount of electricity when heat is applied. The hotter the re the higher the voltage produced; topping out
at 30 millivolts (DC) while the stove is burning on high. The function of the thermocouple is to sense the
temperature in the re pot; if the thermocouple is fractured, it will not produce voltage.

June 17, 2019 7058-803B 19
ECO CHOICE PELLET
FUSE
T.C.
JUNCTION BOX
THERMOCOUPLE CIRCUIT
THERMOCOUPLE
BLOCK
THERMOCOUPLE
YELLOW
YELLOW
YELLOW
YELLOW
RED
RED
RED
RED
A / 1
B / 2
C / 3
D / 4
E / 5
F / 6
H / 7
J / 8
K / 9
L / 10
M / 11
N / 12
P / 13
R / 14
S / 15

June 17, 20197058-803B20
ECO CHOICE PELLET
10 Firebox Vacuum & Vacuum Switch
TECH TIP:
Low vacuum can be the result of a leaking
door gasket, re pot not closing all of the way,
dirty heat exchanger, or plugged vent system.
Always make sure the unit is clean before
making any repairs.
TURN ON THE
EXHAUST BLOWER
SYSTEM IS
REPAIRED
DOES THE VACUUM
SWITCH TOGGLE
FROM OPEN TO
CLOSED?
BAD GOOD
CHECK WIRE
CONNECTIONS &
VACUUM HOSE.
NO
DID THE
FIREBOX
VACUUM REACH
.2 INCHES OF
WATER COLUMN
OR HIGHER?
YES
NO
YES
CHECK DOOR
GASKETS, CLEAN
HEAT EXCHANGER &
COMPLETE EXHAUST
SYSTEM.
REPAIR WIRES OR
REPLACE THE WIRE
HARNESS
REPLACE THE
VACUUM SWITCH