Propex HS2211 External Gas Air Heater
Official technical documentation and workshop diagnostics for HS2211 External Gas Air Heater.
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
1 Flash | No flame detected | — | Check there's gas in the bottle and the line isn't blocked, and use propane rather than butane below +5°C. To clear a gas lockout, turn the selector knob from the gas-on (flame) position to off and back to on again, completing the whole movement within 2.5 seconds. Switching to 'fan only' and back to 'on' within that same 2.5-second window also clears it. | DIY Safe |
2 Flashes | Overheat | — | Make sure the air ducts and vents aren't blocked or restricted, and let the heater cool for 5-10 minutes before attempting the reset. To clear the lockout, turn the selector knob from gas-on (flame) to off and back to on within 2.5 seconds, or switch to 'fan only' and back to 'on' within that same window. | DIY Safe |
3 Flashes | Low/high supply voltage | — | The heater's operating voltage should read 10-15V. Check the battery voltage, and if it's in range, check the heater-to-battery connections plus the alternator or external charger. Clear the lockout by turning the selector knob gas-on, off, then on again, all within 2.5 seconds, or via 'fan only' back to 'on' within that same period. | DIY Safe |
4 Flashes | Combustion air fault | — | Check the exhaust flue, and the flue that brings in combustion air, for blockages. | DIY Safe |
5 Flashes | Other/internal fault | — | Try the lockout-clearing sequence: turn the selector knob from gas-on to off and back to on within 2.5 seconds, or switch to 'fan only' and back to 'on' in that same window. If that doesn't clear it, contact a Propex-approved service centre or technician. | DIY Check / Tech Fallback |
Frequently Asked Questions
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: How many outlets can you put on the Heatsource HS2000, HS2000E and HS2211?
The maximum recommended is 3, providing the total combined length of ducting is no longer than 5 metres and the maximum length to the first outlet should not exceed 1.5m.
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.