Furnace Repair Parts

When you experience a problem with your boiler, your thoughts will turn to where you may obtain new furnace parts. Where you live will have an impact on how easily you can obtain furnace parts. It is very important that you get the correct gas furnace repair parts for your particular boiler and that these come from a registered dealer who will stand over your parts should there be a problem when they are installed. Finding the correct furnace repair parts can be challenging particularly if you are carrying out an emergency repair in the midst of winter!

The speed at which you require your repair may mean that some parts may not be available for sale to the public, and may only be sold to a HVAC engineer. You will need to find a company which is happy to sell only the furnace repair parts. HVAC repair parts should ideally be installed by a registered gas engineer, as incorrect installation can lead to inefficient burning of fuel and in turn release poisonous gases, most notable and dangerous of which is carbon monoxide which is difficult to detect without a carbon monoxide meter. Regardless of the type of furnace part you require, you need to ensure that you have detected the correct part for your boiler. HVAC parts are not reused or recycled because it is dangerous to do so and inefficient. Lennox, Trane and Goodman gas furnace parts are generally fairly easily available; however you may have to get your HVAC engineer to buy them for you.

Once you have the correct furnace repair parts, you will then just need to install these by a trained engineer.

Boiler repair parts should only be purchased from reputable dealers. Some dealers will store parts for older boilers but these should not be second hand and should have the correct paperwork and instructions included to ensure their efficacy. Heat pump repair parts which you require may include mixing tubes, gas supply lines, gas valves or filters.

Essentially a gas boiler does the following:


  • Sucks in cold air
  • Cleans the air through a filter
  • Heats the air with a gas burner using a stainless steel heat exchanger
  • It then distributes the warm air with a blower motor through your home.


Once the air has circulated around your central heating system, the air is then cooled and returns through the return air grills and ductwork. The heating loop then continues again.

This process can be interrupted by any number of events, including:

Possible Causes

  • Thermostat set too low and not calling for heat
  • Thermostat not working
  • The circuit breaker or fuse may have tripped or blown.
  • The gas or propane control valve is closed
  • Pilot light is out


Possible Repairs

  • Check that your thermostat is set to heat mode and to an appropriate temperature setting
  • Clean the contacts in thermostat if it is a manual thermostat
  • Check if the circuit breaker has tripped.
  • Replace the fuse if it has blown
  • Reignite the pilot light