Mi T M Heater Mh 0190 0M10 Ignitor Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          1 - 2 hours

Sections

Safety Precautions
1 step
Upper Shell Removal
2 steps
Right-Side Cover Removal
3 steps
Motor and Pump Assembly Removal
15 steps
Ignitor
7 steps

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Introduction

After the pump and motor are reinstalled, use a flat blade screwdriver to adjust the pump pressure to 7.5 PSI as instructed on page 17 of the user manual.

What you need

Step 1

              Safety precautions

Power off the machine at least one hour prior to starting repairs. Ensure the machine is completely cool to the touch.
Flip the power switch into the OFF position.
Unplug any extension cords from the included power cord.

Power off the machine at least one hour prior to starting repairs. Ensure the machine is completely cool to the touch.

Flip the power switch into the OFF position.

Unplug any extension cords from the included power cord.

1024

Step 2

              Remove the upper shell

Use a 5/16 inch socket or Phillips screwdriver to remove the eight screws securing the upper shell, four on each side.

Use a 5/16 inch socket or Phillips screwdriver to remove the eight screws securing the upper shell, four on each side.

Step 3

Lift the upper shell straight up off of the machine to remove it.

Lift the upper shell straight up off of the machine to remove it.

Step 4

              Remove the right-side cover

Use a 5/16 inch socket or Phillips screwdriver to remove the four bolts securing the right-side cover.

Use a 5/16 inch socket or Phillips screwdriver to remove the four bolts securing the right-side cover.

Step 5

Tilt the right-side cover down to access the PCB board.
Do not fully remove the right-side cover, it is still attached via the on/off switch.
During reassembly, ensure the display window is aligned with the LCD display before you press the cover into place.

Tilt the right-side cover down to access the PCB board.

Do not fully remove the right-side cover, it is still attached via the on/off switch.

During reassembly, ensure the display window is aligned with the LCD display before you press the cover into place.

Step 6

There are two wires connecting the power switch to the main PCB assembly.
Use needle nose pliers to remove the wire with the blue connector.
Remove the wire with the clear connector.
Remove the right-side cover.
During reassembly, install the power switch wires back in their original locations with the blue wire above the clear wire.

There are two wires connecting the power switch to the main PCB assembly.

Use needle nose pliers to remove the wire with the blue connector.

Remove the wire with the clear connector.

Remove the right-side cover.

During reassembly, install the power switch wires back in their original locations with the blue wire above the clear wire.

Step 7

              Disconnect the ground wires

Use a 5/16 inch socket or Phillips screwdriver to remove the screw securing the two green ground wires to the frame.

Use a 5/16 inch socket or Phillips screwdriver to remove the screw securing the two green ground wires to the frame.

Step 8

              Disconnect the fuel line

Use a pair of needle nose pliers to release the hose clamp from the fuel line.
Slide the hose clamp off of the nipple, about one inch down the fuel line.

Use a pair of needle nose pliers to release the hose clamp from the fuel line.

Slide the hose clamp off of the nipple, about one inch down the fuel line.

Step 9

Pull to disconnect the fuel line from the motor and pump assembly.

Pull to disconnect the fuel line from the motor and pump assembly.

Step 10

Use a pair of needle nose pliers to remove the fuel line hose clamp.

Use a pair of needle nose pliers to remove the fuel line hose clamp.

Step 11

              Disconnect the motor and pump assembly

Use a pair of needle nose pliers to disconnect the wires connecting the motor and pump assembly to the main PCB board:
One red cable labeled MOTOR 2 on the main PCB board
One orange cable labeled MOTOR 1 on the main PCB board
Pull the wires with the needle nose pliers by their connectors and not the wires themselves.

Use a pair of needle nose pliers to disconnect the wires connecting the motor and pump assembly to the main PCB board:

One red cable labeled MOTOR 2 on the main PCB board

One orange cable labeled MOTOR 1 on the main PCB board

Pull the wires with the needle nose pliers by their connectors and not the wires themselves.

Step 12

Use a pair of flush cutters to cut the cable tie harnessing the wires running from the main PCB assembly.
Remove the cable tie.
During reassembly, install a new cable tie.

Use a pair of flush cutters to cut the cable tie harnessing the wires running from the main PCB assembly.

Remove the cable tie.

During reassembly, install a new cable tie.

Step 13

Use a pair of flush cutters to cut the cable tie harnessing the orange, red, white, and black wires near the fuel line.
During reassembly, install a new cable tie.

Use a pair of flush cutters to cut the cable tie harnessing the orange, red, white, and black wires near the fuel line.

Step 14

Use a pair of flush cutters to cut the cable tie harnessing the orange and red wires next to the motor.
During reassembly, install a new cable tie.

Use a pair of flush cutters to cut the cable tie harnessing the orange and red wires next to the motor.

Step 15

              Detach the capacitor

Use a Phillips screwdriver to remove the screw securing the capacitor band clamp.

Use a Phillips screwdriver to remove the screw securing the capacitor band clamp.

Step 16

Remove the capacitor from the band clamp.
During reassembly, realign the foam padding between the capacitor and the band clamp.

Remove the capacitor from the band clamp.

During reassembly, realign the foam padding between the capacitor and the band clamp.

Step 17

              Remove the motor and pump assembly

Feed the orange and red wires out through the opening in the lower shell.

Feed the orange and red wires out through the opening in the lower shell.

Step 18

Use a 5/16 inch socket or Phillips screwdriver to remove the four bolts securing the left-side cover.

Use a 5/16 inch socket or Phillips screwdriver to remove the four bolts securing the left-side cover.

Step 19

Remove the left-side cover.

Remove the left-side cover.

Step 20

Use a 5/16 inch socket or Phillips screwdriver to remove the four screws securing the motor mount bracket, two on each side.

Use a 5/16 inch socket or Phillips screwdriver to remove the four screws securing the motor mount bracket, two on each side.

Step 21

Lift the motor, pump, and bracket assembly straight up out of the machine.

Lift the motor, pump, and bracket assembly straight up out of the machine.

Step 22

              Disconnect the spark plug wires

Grab the spark plug wires by their boots and pull firmly to disconnect them from the spark plug.

Grab the spark plug wires by their boots and pull firmly to disconnect them from the spark plug.

Step 23

Feed the wires through the opening in the lower shell.

Feed the wires through the opening in the lower shell.

Step 24

              Disconnect the ignitor from the main PCB assembly

Use a pair of needle nose pliers to depress the locking tab on the red wiring harness’s connector labeled IG on the main PCB assembly.
With the locking tab depressed, pull to remove the red wire from its header on the PCB.

Use a pair of needle nose pliers to depress the locking tab on the red wiring harness’s connector labeled IG on the main PCB assembly.

With the locking tab depressed, pull to remove the red wire from its header on the PCB.

Step 25

              Remove the igniter

Use your fingers to bend the metal tab on the lower shell holding the igniter in place upward to create space for the igniter to be removed.
During reassembly, bend the tab back into place once the new igniter is installed.

Use your fingers to bend the metal tab on the lower shell holding the igniter in place upward to create space for the igniter to be removed.

During reassembly, bend the tab back into place once the new igniter is installed.

Step 26

Lift the igniter out from underneath the lower shell.

Lift the igniter out from underneath the lower shell.

Step 27

Feed the red wire harness through the opening in the lower shell.

Feed the red wire harness through the opening in the lower shell.

Step 28

Remove the spark plug wires from underneath the lower shell.
Remove the igniter.

Remove the spark plug wires from underneath the lower shell.

Remove the igniter.

To reassemble your device, follow these instructions in reverse order.

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