What to do if boiler condensate pipe has frozen?
You should only attempt to thaw a condense pipe that is at ground level and is easily accessible to you. Think about your safety! Under no circumstances should you attempt to thaw a condense pipe which is at height, without the assistance of a professionally trained engineer.
Before you start, turn your boiler off at its dedicated switch. If your boiler is on the ground floor, go outside and look for a plastic pipe that comes out from the wall that your boiler is mounted on.
Pour warm water straight over the pipe, concentrating on where it comes out through the wall, and where it changes direction. Also check where the end terminates if safe to do so. It may be sitting in a frozen drain or gulley.
If you are careful, you can use a hairdryer to gently warm the pipe, however, as we are using electricity around water, please be vigilant and use an RCD circuit breaker on the plug as a minimum.
Be aware that if you are pouring water onto the pipe this can also quickly freeze on the ground causing a slip hazard.
The condensate will eventually clear.
Once it has cleared, try and reset your boiler, you may have to reset the boiler several times before it comes on again.
If the boiler fails to operate following these actions Roselands Heating will be happy to attend and keep your system operating correctly.
Temporarily keep the heating on continuous (24hrs) while it is particularly cold, leaving the room thermostat on or around 15ºC at night. Don’t forget to return it to normal settings when the weather warms up.
Re-route condensate drain into an internal drain, such as sink waste, internal stack.
Weatherproof insulation fitted to existing condensate pipe.