Low Pressure Switch Furnace

Furnace pressure switch troubleshooting.

Low pressure switch furnace.

4 7 out of 5 stars 90. Oem upgraded replacement for goodman furnace vent air pressure switch b13701 26 by goodman. A furnace pressure switch is an automatic safety feature located near the motor. Which is why i made this video that go.

The source of pressure switch problems can sometimes be a pain to track down. Pressure switches oem parts hvacr parts including air pressure switch 0 60iwc pressure switch kit pressure switch pressure switch air pressure. A furnace pressure switch is a safety device located near the draft inducer motor of a gas forced air furnace. It shuts the furnace down if it senses negative pressure created by the draft inducer motor.

Goodman furnace pressure switch 0130f00002p 40 pressure switch goodman b1370158 nordyne 632444 pressure switch. Also the fittings that the tubing fit into should be clear. Other problems that could cause the pressure switch to not open are a dirty blower wheel on the inducer. The diaphragm in your pressure switch is a common location for problems.

How to test pressure switch on a furnace. Pressure switches can malfunction due to age which can prevent accurate readings and result in faulty furnace cycling. This protects your home from dangerous backdrafting which is when exhaust fumes are reintroduced into the system. In this video i show 3 ways how to check a pressure switch.

Over time your diaphragm can become coated or stiff which reduces its effectiveness. 4 8 out of 5 stars 54. The pressure switch fitting may have a restrictor inside do not remove. 4 7 out of 5 stars 29.

If the pressure switch is stuck it does not send enough power to the inducer and therefore the ignition sequence does not begin. A pressure switch is designed to sense the negative pressure created by the draft inducer motor during the furnace startup and to shut down the furnace ignition if the air pressure is inadequate. Check the tubing from the inducer. The first method is to measure continuity and resistanc.

Continue reading below our video of the day. The switch is there to prevent the furnace from running unless the correct venting air pressure is present. The pressure switch is an indicator of pressure problems in the furnace. It should be clear.