Fastrax Hellfire 900, Installation, Operation & Maintenance Instructions Manual

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Problem Conditions* Possible Cause Remedy**
Heater cycles
excessively. (Less than
30 second cycle time).
No alarm.
• Fan starts.
• Controller LEDs
– POWER on.
– MOTOR on.
– HEAT on.
– RUN IND on.
• FSR LEDs sequence
1. PILOT on.
2. HEAT on.
3. MAIN on.
4. HEAT off.
5. MAIN off.
6. PILOT off.
• FSR sequence repeats
indefinitely.
Marginal flame signal.
PILOT signal above and MAIN
signal below 1.2 micro amps.
• Inspect flame rod and wiring.
• Replace any damaged items, fouled rod,
corroded wire or cracked boot.
Manifold gas pressure set too high.
Reduce gas pressure to within nameplate
setting.
Air intake blocked. Clear intake screen.
Duct system blocked.
Remove any blockage such as mud, ice, or
debris from:
1. Cross duct.
2. Tie duct.
3. Nozzles.
4. Rodent screens.
Insufficient number of track duct
vents open. Open vents as per “Switch Heater Track Duct
Field Modifications Manual” 11237.
Heater starts and runs
normally for a period
of time then stops
unexpectedly.
Alarm indicated.
• Controller LEDs
– POWER on.
– ALARM red.
– FSR ALARM
alternating.
• FSR LEDs
– POWER green.
– ALARM red.
• Marginal flame signal.
• PILOT signal and MAIN signal
occasionally dropping below
1.2 micro amps.
• Measure flame signal.
• Inspect flame rod and wiring.
• Replace any damaged items, fouled rod,
corroded wire, or cracked boot.
Manifold gas pressure set too high.
Reduce gas pressure to within nameplate
rating.
FSR reset module disconnected
No retries possible.
Verify reset module is correctly plugged
into FSR.
FSR detected fault.
• Leave heater in ALARM.
• Install FSR display module. Review
fault history and refer to Honeywell
documentation for further explanation.
Gas manifold and supply
pressure slowly drop while
operating. Vapour withdrawal causes
refrigeration effect to lower LPG
tank pressure.
Remove snow accumulation on propane tanks.
Heater runs
continuously.
NO alarm.
Unable to stop the heater
remotely.
Mode selector switch in
manual position.
Heater accidentally left on. Toggle selector switch to REMOTE/AUTO.
• Mode selector switch in
REMOTE/AUTO position.
• Controller LEDs
– Power on.
– MOTOR on.
– HEAT on.
– RUN on.
– RTC on.
RTC has heater requested. Notify RTC dispatcher.