Allmand MAXI HEAT 500IQ Podręcznik - Strona 6

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SERIAL NUMBER 14-000001 AND UP

Blower Fan Stops Circulating or gets a Red "X" over fan:

**MH 500 IQ has a burner that will start up and the fan will not turn on. Fan not running

will cause the unit to shut down . **

❏ When this fault occurs it is an indication the fan is losing power.

❏ Check all the circuits to the fan. Power comes from 120 plug in into the bottom of

the IQ controller.

❏ Start with going to the IQ control box for the burner that is having the issue. Open

the cover of the box and over to the side is a wrench icon, press it. After pressing

the icon type the password 123 then press the Enter button. You can control the

fan manually from this point.

❏ Note: If you turn the fan on manually and the fan doesn't run, then the

motor for the fan could be faulty and need to be replaced (#107194)

❏ If the fan runs while in manual mode then the fan is working and power going to

fan is ok. The circuit into the IQ controller that controls the blower fan has a loose

or faulty connection.

❏ Check the red terminal block at the bottom of the IQ controller (See examples

below). 120 volts into the terminal block feeds the relay above it and into the fan

circuit during the purge process.

M axi Heat 500IQ