Component Mechanical Or Electrical Problems; Fuel Nozzle; Fuel Shut-Off Valve; Fuel Regulator - Proheat M80 Service Manual

PROHEAT M-SERIES SERVICE MANUAL
3.2 COMPONENT MECHANICAL
OR ELECTRICAL PROBLEMS
3.2.1

Fuel Nozzle

3.2.2

Fuel Shut-off Valve

3.2.3

Fuel Regulator

3.2.4

Air Compressor

3.2.5

Fuel Supply Pump

3.2.6

Ignition Electrodes

3.2.7

PCM Fuse

Protects the PCM against high current. When switched on, the PROHEAT will
NOT start, attempt to start, or indicate a diagnostic code.
Troubleshoot a Blown Fuse based on:
1. Voltage supply to the PROHEAT.
2. Voltage at the output connections of the PCM.
Test Procedure – Voltage supply:
a) Disconnect the power harness at the PCM.
b) Using a multimeter set for voltage, measure across pins A and B of the
harness connector for system voltage.
If there is no voltage, check the OEM voltage supply. Consult OEM for
service requirements.
If the correct voltage (system voltage 12 – 24) is measured, go to item 'c'.
PIN B – BLACK (-)
Figure 3-42: Power Harness
Go to page 3-6, Step 3.
Go to page 3-8, Step
Go to page 3-11, Step 5.
Go to page 3-12, Step 6.
Go to page 3-15, Step 7.
Go to page 3-18.
PIN A – RED (+)
4.
3-37