20 Most Recent Cozy (W352E) Heater Questions & Answers

Well if it's considered an unsafe situation, please, for your own safety, hire you own experienced expert for a second opinion. Get the results in writing, and if it shows an issue that can be resolved exists, present it to the home owner and ask for a refund off the rent. If that unit has a cracking, creaking to it, probably just the metal heat exchanger expanding and contracting. It's a new unit with new noises, and may take time to get used to. Now if its a louder bang or piping sound, there may be an intermittent issue that needs to be addressed.

Hi, I will walk you through to check the stat. Pull off the cover 1st. You will need a screwdriver, a small one. Could be slotted or phillips. Loosen all of the screws you can see until the t-stat comes off. You have 3 sections counting cover. You will now see the sub-base and wires. You should have only 2 wires to the stat. You will need a piece of scrap insulated wire, even a piece of old speaker wire twisted togeter at each end will work. No worry of shock. Just jump or touch across the 2 terminals and hold them on and if it fires up and comes on, the thermostat is the fault. More then likely that will be the problem. Any hardware store will have one. Get a heat milivolt only, even if the salesman trys to sale you a heat/cool 24 volt stat which will work, but will cause problems in the future. I am sure it is stat. If not, contact me and I will walk you through what else would cause this. If the pilot is on, there is no ignitor on this furnace, either a thermopile generator or a thermocouple, a high limit switch and the main gas valve. Keep me posted, it will only take you a few minutes to test the t-stat. Let me know.
Shastalaker7

it is normal,you need patience

there may be a spider web in the burner

If the unit has a wall thermostat, remove one of the wires from the thermostat. If the unit stops it indicates a bad thermostat. If it continues to heat, remove one of the wires coming from the thermostat going to the gas valve inside the heater. If it continues to heat you have a bad gas valve. If the heater shuts off, you have a bad thermostat wire (short).

Mots the t stat or gas valve check connections first most likely it's the gas valve cause the furnace is old valve is stuck cannot open

no more than 20 feet of stat wire any more can cause a drop in voltage.

When you replaced the Thermocouple, how tight did you tighten the nut that goes into the Gas Control Valve? If you over tightened it, that may be the problem.

Turn the heater off, let it cool and then loosen the nut with the appropriately sized open end wrench. Remove it completely, then reinsert it into the hole and finger tighten. Once it's finger tighten and with the wrench turn it only 1/4 turn more.

hlie you're at it, clean out the Oxygen Depletion Sensor (ODS) if you haven't already.To find it, look down the pilot assembly from the tip where the flame comes out and you will see a little hole in the side of the pilot about 2/3rdsof the way down. That's the ODS. Using a can of compressed air with a straw nozzle (like you clean your computer with) place the straw nozzle just barely into the hole and give it a quick blast of air.Also, blow out the pilot tip the same way.

Doing all of this should solve your problem. Please let me know.

take pilot orifice out of pilot and clean and check tubing for debris.

The heat sensor, that turns the blower ON at the right temperature has failed and needs to be replaced.

remove burner and wash out with water, make sure water is coming out of all gas slots and double check gas pressure and orifice is clear.

turn off electric if 24 volt take the wires off of stat and twist together, this is a test do not leave this way.

make sure wall is between 5" and no more than 9", adjust gas pressure or have the plumber call cozy tech support at 502-589-5380

by pass stat wire.

that unit has a stat built into the gas valve, have to change valve to have a wall stat.

Check flue pipe,old flue pipe may have soot,also check vent flashing may be restricted