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Anonymous asked in Home & GardenMaintenance & Repairs · 3 years ago

Furnace Blowing Out Cold Air!! only Working with Emergency Heat!! Help!!?

I have an electric furnace.... dont know a whole lot about it i just moved in the place.. but was working fine for the last few weeks.... woke up this morning and it's in the negatives outside and my thermostat sais "62" when i had it set at "72" so i checked the air coming out the vents and its very cold... i turned it off for a minute and back on and did nothing.. so i tried to runnin emergency heat off it and that actually worked... so i'm curious as to what the problem could be.. if the emergency heat can work but not that regular heat.. what could that mean?

2 Answers

  • Anonymous
    3 years ago
    Favorite Answer

    Even though the emergency brake cable is housed in a protective sleeve, with infrequent use, the cable can become corroded and rusted. This can result in cable failure just when you need it the most. Normal use prevents buildup and keeps the cable in good condition, though you should have the emergency brakes routinely inspected, as they sometimes need to be tightened.

    In cold temperatures, the emergency brake cable can become frozen and fail to release when the lever is disengaged. Parking in a garage or other protected area can help you to avoid this problem. But if you have to park outside and it freezes up, you should not attempt to drive your vehicle. Solutions include waiting it out or jacking up the car and using a hairdryer. The best option in freezing weather is to simply not use the emergency brake at all. If you're on level ground in a manual vehicle, put the car in first or reverse and skip the e-brake.

    ­Be aware that in some vehicles, the emergency brake engages the front brakes, not the rear brakes. Knowing which brakes are set and properly chocking your vehicle wheels will protect you in situations where you must jack up the vehicle. Refer to your service manual before you raise the car. Believing the rear brakes are engaged when they aren't can be extremely dangerous.

    Now onto the big question: Is using the emergency brake safe when the other brakes fail? Yes and no. Pulling the brake lever quickly will cause the vehicle to fishtail, lock up or skid, essentially removing control of the vehicle from the driver. But if you're ever in the highly unlikely but extremely serious situation of having your service brakes fail to function, try to stay calm and pull the emergency brake lever up slow and steady, bringing the vehicle to a longer but more controlled stop.

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  • Anonymous
    3 years ago

    Whenever the temp reaches below 28 a heat pump begins to not work and the lower the temp the less heat,if this has happened to your unit,run it in emergency mode(which is simply the regular electric furnace only,not heat pump mode)and check the outdoor unit for excessive ice build up around the two black insulated covered copper tubes(the small being a pressure and the larger a suction line)if you notice significant ice build up there then continue to run in emergency mode and Monitor icing till it melts away then go back to normal mode,as ice can move or separate lines ,electrical connections or even puncture the freon or refrigerant system this little step could save you a huge repair bill when you do need A/C.

    And always keep your outdoor unit free of debris and blockage and also gutters pouring or dropping ice sickles on it,for when the fan runs in the outdoor unit those ice chunks become miniature missiles in a pressure filled system.

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