| Gas furnaces use either propane or natural gas to | | | | from one of the above issues can usually be fixed |
| heat enclosed living areas. While gas is often | | | | on the same day at minimal cost. If a gas |
| talked about as an expensive means of heat, gas | | | | furnaces repair technician indicates that the |
| furnaces typically burn cleaner than oil furnaces | | | | problem stems from one of the above issues but |
| and therefore present their owners with less | | | | that some of the other issues appear immanent, |
| repairs than oil furnaces. But when problems do | | | | save money and have all of them repaired in one |
| occur with gas furnaces, they're typically easy to | | | | visit. |
| identify and aren't labor intensive to correct. | | | | A Furnace Keeps Switching On and Off |
| Below are four issues that commonly arise with | | | | If your furnace switches on and then switches |
| older gas furnaces and what you can expect in | | | | off before producing the desired level of heat, it |
| terms of repairs. | | | | likely suffers from one of the following problems: |
| A Furnace Produces No Heat | | | | a clogged blower, a dirty filter or an overly dry |
| If your gas furnace produces no heat, chances | | | | motor. In the first case, a technician will clean out |
| are that it's experiencing one of the following | | | | your blower and its surrounding area using a |
| issues: a closed control valve, a blown fuse or | | | | vacuum; in the second case, the technician will |
| tripped circuit, a faulty thermostat or a | | | | replace your temporary air filter or clean and |
| non-working pilot light. While you could correct | | | | reinsert your permanent air filter; in the third |
| these problems yourself, it's best to call a gas | | | | case, the technician will lubricate the motor by |
| furnaces repair service (i.e. a heating and cooling | | | | placing oil in the necessary oil ports. In each case, |
| company) if you aren't experienced with gas | | | | the service cost should again be minimal. |
| furnaces. Regardless of which of the above issues | | | | A Furnace's Pilot Light Won't Come On |
| your furnace is experiencing, an HVAC repair | | | | With most furnaces, you can tell if a pilot light is |
| technician should be able to fix the problem on the | | | | on by kneeling to the floor and looking at the |
| same day, and none of the above issues will | | | | underside of the furnace, where you'll see a small |
| result in a significant repair cost. | | | | blue flame emanating from a small pipe if the pilot |
| A Furnace Produces Insufficient Heat | | | | light is running. A pilot light that won't light is |
| If your furnace has been producing less heat, it | | | | generally caused by one of three issues: a clogged |
| could be because the blower is occluded, the | | | | pilot opening, insufficient gas flow due to an |
| blower belt is loose or because the filter or burner | | | | improperly set gas valve or a damaged |
| is dirty. These problems can also occur in unison. | | | | thermocouple. In each case, the remedy is |
| As with a furnace that produces no heat, a | | | | requires light labor and can be fixed at minimal |
| furnace that produces insufficient heat resulting | | | | cost. |