Sun Heat Mountainaire MA4000 Assembly instructions

MA4000
Repair Guide
!!Unplug The Purifier Before Servicing!!
DO NOT USE AN ELECTRIC DRILL TO FIX…
THIS MAY CAUSE DAMAGE TO INTERNAL COMPONENTS
A. How To Replace UV-C Bulb
B. How To Replace Ozone Plates
C. How To Replace Power Cord
D. How To Replace Fuse (1 amp)
E. How To Replace Center Housing
F.How To Replace Fan
G.How To Replace Ionizer

H.How To Replace Front Display Board
I.How To Replace On/Off and Power Cord Housing
J.How To Replace Automatic Safety Switch
K.How To Replace Circuit Board
L.How To Replace Negative Ion Generator
M.How To Replace Transformer
N.How To Replace Ozone Plate Brackets
O.How To Replace Bulb Sockets
P.Wiring Diagram
PLEASE CALL CUSTOMER SERVICE
FOR ASSISTANCE:
1-877-467-8643

A
How To Replace UV-C Bulb
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In order to gain access to the UV-C bulb, all 4 filters need to be removed.
Picture of Center Housing
UV-C BULB
Bulb Sockets
Ozone Plates
Ozone Plate Brackets

A
NOTE: Do not touch the glass. The oils from your hands will cause the bulb to
burn out prematurely.
The bulb is secured into 2 slotted Bulb Sockets by green security tabs. In order to unlock the
tabs you must twist the UV-C bulb counter-clockwise (or towards you). This will release the
green tabs to allow for removal of the bulb.
Green tab opened
Bulb Sockets with green security tabs in place

B
How To Replace Ozone Plates
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Please inspect Ozone Plates for cracks before and after washing. Each plate should be washed
in warm water before installation. Always allow the plates to properly dry before installing.
You are able to clean lightly with a soft brush and warm water as needed. Usually clean plates
once a month.
There are 2 Ozone Plates inside the Center Housing. Slide the plate out of its channel and
replace with new dry plate.
NOTE: If Ozone Plate is broken or cracked, replace before running Ozone setting.
Ozone Plates

C
How To Replace Power Cord
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The PVC cable power cord is detachable. Remove the old cord and replace with new one.

D
How To Replace Fuse (1 amp)
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In order to replace the fuse, the power cord will need to be removed.
Place a small flat screwdriver under lifting tab. Carefully lift up fuse holder to gain access to the
1 amp fuse.
Fuse

E
How To Remove Center Housing
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To remove the center housing from the cabinet, remove the 4 screws located on the bottom.
Remove the 5 screws located on the back. The back panel will then come off.

E
Slide the Center Housing partially out to unhook the quick connect plugs and the front display
ribbon.
Once the 3 connections are disconnected, the center housing will slide completely out of the
cabinet.
front display ribbon
Fan quick connect plug
Ionizer quick connect plug

F
How To Replace Fan
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With the Center Housing removed, you will have access to the fan. Then remove the 4
screws that hold the fan in place.
If you do not see the securing screws above, please see below on how to remove your fan.
Remove the front fan cover by pushing up and out on the bottom. Then you will see the 4
securing screws that need to be removed.
Front Fan cover
Negative Ion Attracting Plate

F
Remove the 2 screws securing the Negative Ion Attracting Plate in place. Then the fan will
come free from its location.
NOTE: Be sure to reattach these 2 wires and put the plate back into place before putting the
new fan in.
The fan quick connect plug has 3 wires coming from it (2 black and 1 yellow)
Make sure you plug this back into the corresponding connection.

G
How To Replace Ionizer
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The Ionizer is located in a small plastic holder right in front of the fan. You are able to see it if
you remove the front fan cover but will not be able to replace it this way.
The Center Housing and Fan (you will not have to remove the Negative Ion Attracting Plate)
will need to be removed in order to access the Ionizer and Ionizer holder.
The Ionizer holder will slide out of the securing slot. Insert the new Ionizer into the holder and
put back into place.
Make sure you connect the Ionizer quick connect plug back with its correct location.
Ionizer inside holder
Back View
Front View

H
How To Replace Front Display Board
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The Center Housing needs to be removed in order to access the Front Display Board.
Remove the 6 securing screws from the board.
MAKE SURE TO PLUG THE FRONT DISPLAY RIBBON BACK INTO ITS LOCATION
Front Display Ribbon

I
How To Replace On/Off and Power Cord Housing
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Remove 5 securing screws on the back panel.
Remove the 2 screws securing the housing into place on the back panel.
Remove the connecting wires one at a time and secure to the new housing.
**If you disconnect all wires at once, please refer to wiring diagram for wire location.
On/Off and Power Cord Housing

J
How To Replace Automatic Safety Switch
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Remove 5 securing screws on the back panel.
Remove the 2 screws securing it into place. Remove the 2 wire connections one at a time and
connect to new switch.
**If you disconnect all wires at once, please refer to wiring diagram for wire location.
On/Off and Power Cord Housing
Automatic Safety Switch
On/off Switch and Power
Cord Housing

K
How To Replace Circuit Board
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To gain access to the circuit board, the Center Housing needs to be removed from the cabinet.
The circuit board is located inside the bottom of the center housing.
Slide the Circuit Board out of the channel. Unplug J6from circuit board (this wire is
pulled snug and you don’t want to cause any damage to it).
Remove the wire connections one at a time and connect to new board.
Connect J6last and put the new circuit board back into its channel.
**If you disconnect all wires at once, please refer to wiring diagram for wire
location.
Circuit Board
Transformer
Center Housing
J1
J7
J3
J4
J6J8
Front Display Ribbon

L
How To Replace Negative Ion Generator
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To gain access to the Negative Ion Generator, the Center Housing needs to be removed from the
cabinet. The Negative Ion Generator is located inside the bottom of the center housing.
Remove the 2 screws securing the Negative Ion Generator in place. Unplug from the Circuit
Board (J4).
Transformer
Circuit Board
Negative Ion Generator

M
How To Replace Transformer
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To gain access to the Transformer, the Center Housing needs to be removed from the cabinet.
The Transformer is located inside the bottom of the center housing.
Remove the 4 screws securing the Transformer in place. Unplug from the Circuit Board (J3).
Transformer
Circuit Board
Negative Ion Generator

N
How To Replace Ozone Plate Brackets
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There are 4 Ozone Plate Brackets.
Remove the screw that corresponds with the bracket you are wanting to replace. Replace with
new bracket. Make sure you reconnect the wire.
UV-C BULB
Bulb Sockets
Ozone Plates
Ozone Plate Brackets

O
How To Replace Bulb Sockets
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There are 2 Bulb Sockets located inside the Center Housing.
Each bulb socket has 2 tabs; one on the top and one on the bottom. Press these tabs in to
release the socket from its location. Unplug from the Circuit Board (Right-J6; Left-J8).
UV-C BULB
Bulb Sockets
Ozone Plates
Ozone Plate Brackets