What we offer
What is included
Flame sensor cleaning or replacement
Hot surface igniter test and replacement
Ground and wiring check
Burner inspection
Full startup cycle test
Carbon monoxide test
Before you call
Quick checks you can do yourself
- Set the thermostat to Heat, raise the setpoint a few degrees above room temperature, and set the fan to Auto.
- Replace the furnace filter if it is dirty.
- Make sure the furnace door is fully closed so the door safety switch is pressed.
- Look through the small window on the furnace door for a blinking status light. Count the blinks and match them to the chart on the door, then share that with the technician.
- Check that the furnace breaker or the switch near the furnace is On.
- If you smell gas, do not touch any switches. Leave the house and call SoCalGas or 911 from outside.
Still not working? Call (323) 240-2373 or tap "Call me back". Do not open electrical panels or touch gas parts.
Troubleshooting guides
Common problems, explained
Troubleshooting
Furnace Blowing Cold Air? 7 Causes and What to Check
A furnace that blows cold air is often just set to fan On instead of Auto, or the burners shut off after a few seconds because of a dirty flame sensor, a clogged filter, or an ignition problem. Check the thermostat and filter first. If the burners do not light or keep shutting off, call a technician.
Read the guideTroubleshooting
Furnace Turns On Then Shuts Off? Short Cycling Causes
A furnace that turns on and shuts off quickly is short cycling, usually because of a clogged filter causing overheating, a dirty flame sensor, a blocked vent or intake, or a thermostat problem. Replace the filter and check the thermostat first. If it keeps cycling, a technician should check the safety switches and venting.
Read the guideIgnition & Flame Sensor in Santa Clarita & Orange County
WY&G, Inc. provides ignition & flame sensor for homes and light commercial buildings in Santa Clarita, Valencia, Saugus, Canyon Country, Newhall, Stevenson Ranch, Castaic and the north San Fernando Valley, and across Orange County from Tustin and Irvine to San Clemente. Furnace lights then shuts off? Flame sensor cleaning and igniter replacement. Every visit starts with a diagnostic and a written price, and our licensed technicians (CSLB C-20 #1044922) explain what they found in plain language.
Ignition & Flame Sensor by city
Stages
Ignition & Flame Sensor: how it works, step by step
Simple, clear and on your schedule.
Submit a requestStage 1
01Request
You call or send a request. We confirm the problem and set a time, usually the same day.
Stage 2
02On-site visit
The technician tests the system: electrical, refrigerant or gas, airflow and drain.
Stage 3
03Written estimate
You get a written diagnosis and price before any work starts.
Stage 4
04Service
We repair with quality parts and keep the work area clean.
Stage 5
05Support
We test performance, explain what we found and how to avoid it next time.
Tip
Common problems and what they mean
Lights, runs a few seconds, stops
Classic dirty flame sensor.
Clicks but never lights
Igniter or gas supply.
Works on second try
An early warning. Service it before it quits completely.
Has not been serviced in years
Expect a sensor or igniter soon.
Pro tip
Flame sensor problems come back if the furnace is not maintained. A fall tune-up prevents most of them.
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Rooftop Package Unit Repair
Repair and replacement of rooftop and ground package units and gas packs.
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Zoning Systems
Separate temperatures for upstairs and downstairs with dampers and multiple thermostats.
Get detailsReviews
Reviews from our customers
WY&G is very reliable and professional. They were assigned by the warranty company and did excellent work. Same day fixed the problem and finished the work. Strongly recommends WY&G Inc for all AC repair or regular maintenance work for HVAC.
Canyon Country, CAWe’re very happy with WY&G services. We had our old heater & AC replaced in our unit. The tech guys are professional and provide high quality services. Definitely recommend if you want to upgrade your system. The crew worked smoothly and cleaned up after work.
Studio City, CAI don’t have enough good things to say about WY&G. They are professional, fast, and do quality work. I had a lengthy issue that required working with a home warranty and manufacturer’s warranty that WY&G was able to help me resolve. They are great with communicating and always called me back promptly. I will definitely be using them again.
Sherman Oaks, CAFAQ
Frequently asked questions
Can I clean the flame sensor myself?+
We recommend a technician; the furnace has gas and high voltage parts.
How long does it take?+
Usually under an hour.
Is it expensive?+
It is one of the smaller furnace repairs. You get the price before we start.
Do you carry igniters?+
Common ones, yes.
Licensed, insured C-20 HVAC contractor
All major brands
Our own team, no middlemen
Written price before work begins
Help with home warranty claims
Support after every repair and install
Consultation
Get a free quote and consultation
Send a quick request and we will call you back fast.
- A clear written estimate
- Help choosing the right system
- Straight answers to your questions
