Allmand MAXI HEAT 500IQ Manual - Page 3

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SERIAL NUMBER 14-000001 AND UP

Engine Does Not Run

M axi Heat 500IQ will not start ( The engine will crank over ,but not run) Isuzu Genset

Note : I f the unit has a shocker valve, check the value and make sure the shocker is open.**

❏ Ensure the unit has enough fuel.

❏ Go through and check all the connections and most importantly check the

emergency shutdown connection to make sure the connection is secure.(Isuzu

Engine Timer Module-921432/ Cat C1.5 T4F- 650302)

❏ If all connections are secure then check to see if the engine is getting fuel.

❏ Pull the return line on the fuel pump and turn the engine over to see if the fuel

pump is working correctly. Loosen the injector line at the injector to see if there is

further fuel flow.

❏ The unit is getting fuel and the Fuel pump is working, find the fuel solenoid on the

engine. Check the fuel shut off solenoid to ensure plunger retracts (example "A",

solenoid plunger retracts from voltage on hold wire)

❏ If the pump works when an auxiliary power source is applied then trace through

wiring for loss of voltage. Power is pulled from the engine starter and goes

through the temp and oil pressure switches. Check schematic for further testing.

M axi Heat 500IQ