Propex • Air Heaters

Propex HS2800 High Output Blown Air Heater

Official technical documentation and workshop diagnostics for HS2800 High Output Blown Air Heater.

Master Troubleshooting & Diagnostics Matrix

Error Code / IndicatorSymptom / MeaningStep-by-Step DIY FixSuggested Actions
1 Flash
Flame failure
Check gas supply making sure there is gas in the bottle and no blockage in the gas line. Ensure propane is used at temperatures below +5°C. Clear lockout by turning the 'Fan Only' setting on the control panel, 'on', 'off' and 'on' again within 2.5 seconds. If the first lockout reset attempt is unsuccessful, you can retry an additional 4 times. If the lockout still will not clear (identified by a solid LED), please turn off the heater, check the heater for faults, power up the heater and then further lockout reset attempts can be made.DIY Safe
2 Flashes
Overheat fault
Possible Cause: Restricted hot air outlet or air inlet, or heater switched off by battery isolating switch depriving it of its purge cycle.
Check the air ducts and vents are not blocked or restricted. Propex recommends that you wait at least 5 to 10 minutes to allow the heater to cool before clearing lockout by turning the 'Fan Only' setting on the control panel, 'on', 'off' and 'on' again within 2.5 seconds. If the first lockout reset attempt is unsuccessful, you can retry an additional 4 times. If the lockout still will not clear (identified by a solid LED), please turn off the heater, check the heater for faults, power up the heater and then further lockout reset attempts can be made.DIY Safe
3 Flashes
Low/ high voltage
Minimum operating voltage is 10v and max operating voltage is 15v (for 12v heaters) when measured at the heater. Check battery voltage. If above 10v, check connections between heater and battery. Check alternator or external battery charging. Clear lockout by turning the 'Fan Only' setting on the control panel, 'on', 'off' and 'on' again within 2.5 seconds. If the first lockout reset attempt is unsuccessful, you can retry an additional 4 times. If the lockout still will not clear (identified by a solid LED), please turn off the heater, check the heater for faults, power up the heater and then further lockout reset attempts can be made.DIY Safe
4 Flashes
Combustion air fault
Check combustion air inlet flue and exhaust flue for blockages. Clear lockout by turning the 'Fan Only' setting on the control panel, 'on', 'off' and 'on' again within 2.5 seconds. If the first lockout reset attempt is unsuccessful, you can retry an additional 4 times. If the lockout still will not clear (identified by a solid LED), please turn off the heater, check the heater for faults, power up the heater and then further lockout reset attempts can be made.DIY Safe
5 Flashes
Other / internal fault
Attempt to clear lockout by turning the 'Fan Only' setting on the control panel, 'on', 'off' and 'on' again within 2.5 seconds. If the first lockout reset attempt is unsuccessful, you can retry an additional 4 times. If the lockout still will not clear (identified by a solid LED), please turn off the heater, check the heater for faults, power up the heater and then further lockout reset attempts can be made. If this fails, contact Propex.DIY Check / Tech Fallback
Solid
General
Possible Cause: Two faults have occurred at the same time OR more than 5 lockout clearing attempts have been unsuccessful.
Clear lockout by turning the 'Fan Only' setting on the control panel, 'on', 'off' and 'on' again within 2.5 seconds. If the first lockout reset attempt is unsuccessful, you can retry an additional 4 times. If the lockout still will not clear (identified by a solid LED), please turn off the heater, check the heater for faults, power up the heater and then further lockout reset attempts can be made.DIY Safe
No flashing
PCB not powered up
Check the supply to the heater as above. Otherwise contact Propex.DIY Check / Tech Fallback

Frequently Asked Questions

Q: I have an old Carver P4 air heater do you do a replacement?

Yes, the HS2000, HS2211 or the HS2800.

Q: Can the heater be mounted vertically?

The heater must not be mounted vertically on its nose or end or upside down but on one of its sides is not a problem. Remember when mounting the unit you should ensure you can still maintain access to the electronics cover and gas connections

Q: Where can the heater be fitted?

Most installations are mounted in a bedbox or locker. External installation is not recommended unless using the appropriate mounting box. However the HS2211 is designed to be fitted externally.

Q: How noisy is the heater?

There is very little burner noise from the heater itself. However, there will be some noise from the blown hot air similar to that of a small domestic fan heater.

Q: Can the heaters be used while vehicles are moving?

Yes, a vehicle in motion flue terminal is available and the heater should be installed and operated in compliance with the relevant regulatory requirements. Use of the the correct VIM bracket ensure compliance with the vehicle in motion test regime.

Q: What length of exhaust flue pipe can be fitted?

Total combined length must not exceed 4 meters and the inlet pipe should be slightly longer than the exhaust to balance the burner.

Q: What is the electrical consumption?

1.6amps on 12v

Q: How much do they cost?

From as little as £496 for a Heatsource 2000 complete with a single outlet vehicle fitting kit and thermostat.