20 Most Recent Whirlwind FH-778 Air Conditioner - Page 5 Questions & Answers

Look up the term BLACK DEATH.

90-100 psi is very high on the low side.

Without spending too much time,I would pull a vacuum to -28 inch of mercury and let it sit over night.

Monitor the manifold garage for leak. (rise of inch of mercury)

My bet is the low quality LG compressor's worn out metal part is in the condenser.

Blockage will increase the low side PSI.

You can buy HVAC blow out can/chemical to clean line before you vac and fill the refrigerant.

Please let me know what's you founding is on reply.

Whirlwind FH-778... | Answered on Jul 11, 2010

You must have a reclaim machine and a reclaim tank and the old refrigerant must be taken to an approved EPA site for recycling.

Whirlwind FH-778... | Answered on Jul 06, 2010

It would not be a slow leak, but you don't know, if your brother punchtured the coil. If the unit is less than 5 years old, it should be still under warrenty. If it is the coil, depending on the make . say lennox heat pump. the coil is $1,700.00, Coils are all different prices. It might be cheaper to replace whole unit. SORRY


Here are coil prices

Whirlwind FH-778... | Answered on Jul 04, 2010

untill your micron gauge will reach 500 microns and hold it with no rise

Whirlwind FH-778... | Answered on Jun 27, 2010

the liquid line should be hot to the touch and the suction line (bigger diameter) should be beer can cold. you did not indicate if it is sweating inside or outside. if inside, it may be normal if in a high humid area. if outside not normal.

Whirlwind FH-778... | Answered on Jun 12, 2010

Assuming you are not low on freon:
I have seen this symptom caused by too much moisture in the system too, it freezes near the metering device which kills the refrigeration effect which makes it warm up, the ice melts and it starts working until moisture builds up and freezes which kills the refrigeration effect again.

Whirlwind FH-778... | Answered on Jun 03, 2010

You will need to replace the fan motor. Basically when the system starts running in reverse the fan motor is shot, and the electrical is telling to motor to spin one way but since the winnings are shot then are making the motor spin the opposite direction.

Please rate

Whirlwind FH-778... | Answered on Jun 01, 2010

Unless your compressor is burnt up, you probably don't need a new unit. If it's a 1998 it's not that old and you can get parts, the only thing is it's probably R-22 refrigerant and they must fix the leak in the unit if that's the problem before adding refrigerant and the refrigerant is expensive.. All they have in a heating and cooling system, that needs replaced, are a few parts. Outdoor unit has a fan motor,compressor, capacitors fan and compressor and a contactor. Furnace has a blower motor, capacitor, gas valve, fan and limit or furnace control board, which they still make replacement parts for.
My advice would be to call some more HVAC companies, till you find one, that is willing to fix your unit and not replace it..

Whirlwind FH-778... | Answered on Jun 01, 2010

If the charge is low, locate the leak, recover the remaining refrigerant, repair the leak and leak test the unit. Weigh in the new charge with a charging cylender. This is why there is only a port on the high side, the charge is critical and must be acurate down to the fraction of an ounce so the mfg. does not want the tech to connect gauges and adjust the charge, just the loss of gas into the gauge set will affect the machine.

Whirlwind FH-778... | Answered on May 27, 2010

ac is not blowing cold and i have had the freon refilled and leaks fixed any other thing it could be

Whirlwind FH-778... | Answered on May 26, 2010

the red hose connects to smaller line...usually 3/8's....the blue connects to larger that has black insulation. The yellow to tank of freon. The unit must be running to put in blue hose. If unit nit running put in red hose. Must be done by someone with EPA 68 license

Whirlwind FH-778... | Answered on May 10, 2010

try spell check lol

Whirlwind FH-778... | Answered on May 10, 2010

You can't buy R-12 anymore.

Whirlwind FH-778... | Answered on May 02, 2010

www.furnacecompare.com provides the information your looking for. Do your homework! Before you buy.

Whirlwind FH-778... | Answered on Apr 27, 2010

Sounds like a bad thermostat. First test it by making a "jumper" cable. 2 alligator clips connected by a wire.(wear rubber gloves to prevent shock) Remove the cover to expose the wiring. Touch one end to the R- RED terminal and the other to the Y-YELLOW terminal. Your A/C should kick on. If your A/C works the thermostat is the problem. Buy another at the hardware store. BEFORE you replace it cut power from the breaker box. (Keep the gloves on just in case.) Their are 4 terminals on the thermostat with color coded wires attached. R-Red, W-White, Y-Yellow, G-Green. Mount the new thermostat replace wires and restore power. If this solves your problem great; If not call a HVAC tech. Good Luck

Whirlwind FH-778... | Answered on Apr 27, 2010

why would you need to add refrigerant ?
If you need to ask which hose goes where,you are not qualified.

Whirlwind FH-778... | Answered on Apr 06, 2010

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