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Before You Call For Service

The Problem
Possible Reasons
What You Can Do
The unit won't come on.
The thermostat is set incorrectly.
Check that thermostat is set to “HEATING” or “COOLING” and that the temperature is set for the unit to come on.
The thermostat is in the time delay mode.
Wait 5 minutes for the thermostat to complete the time delay.
The circuit breaker is tripped.
Check the circuit breaker.
The reset button has tripped.
On some outdoor units, there is a red reset button on the outside of the unit. Press it to reset the system.
The fuse is blown.
Check the fuses in the disconnect or have them checked at a hardware store.
Furnace is unplugged.
Plug furnace in.
Many furnaces have a safety switch on the blower panel. The panel must be installed properly for the unit to operate.
Replace panel properly.
The indoor fan won’t shut off.
Thermostat fan switch is set to “ON” instead of “AUTO”
Change the setting on the fan switch.
The outdoor unit is running but there is no air blowing out of the registers.
The coil may be iced up.
Turn off the system for a few hours to allow it to defrost. Then turn it on again. While it is off, check the filter. If it is dirty replace it or clean it.
Water leaks on the ceiling, floor or walls.
The drain pipe or hose may be clogged.
Make sure the pipe is opened at the termination point.
The air conditioner doesn’t get cool enough.
The air conditioner doesn’t get cool enough.
Turn off power to the outdoor and clean the coil with a garden hose. Clean leaves and other debris from the coil.
The return grill is blocked.
Move furniture and other obstructions away from the return grill opening.
The registers are dirty.
Clean the registers.
The registers are closed off partially or fully.
Open the registers.
Window or door to the outside may be opened for long lengths of time.
Be sure the windows and doors stay closed when possible.
The insulation may be less than adiquate or missing above the ceiling.
If possible, inspect the attic insulation level and add more if needed.
The rooms are not warm enough or cool enough.
The filter is dirty.
Replace the filter with the same size or clean it if is cleanable.
The return grill is blocked.
Move furniture and other obstructions away from the return grill opening.
The registers are dirty.
Clean the registers.
The registers are closed off partially or fully.
Open the registers.
Window or door to the outside may be opened for long lengths of time.
Be sure the windows and doors stay closed when possible.
The insulation may be less than adiquate or missing above the ceiling.
If possible, inspect the attic insulation level and add more if needed.
Unit is not blowing hot air in the heating mode.
Unit is not blowing hot air in the heating mode.
Switch to “HEAT”
Gas is not turned on.
Have gas turned on.
On gas furnaces equipped with electronic ignition, the system may have gone into safety mode.
Turn room thermostat “OFF”, allow 5 minutes to pass, then set thermostat back to “HEAT” to reset the ignition system.
Thermstat “FAN” switch is set to the “ON” position.
Switch “FAN” switch to the “AUTO” position.
Unit is not blowing cold air in the cooling mode.
The coil may be iced up.
Turn off the system for a few hours to allow it to defrost. Then turn it on again. While it is off, check the filter. If it is dirty replace it or clean it.
There is ice on the pipes at the evaporator coil in the cooling mode.
The filter is dirty.
Replace the filter with the same size or clean it if is cleanable.
The return grill is blocked.
Move furniture and other obstructions away from the return grill opening.
The registers are dirty.
Clean the registers.
Too many supply registers are closed off.
Open the registers.
Steam or smoke is coming from the outside unit occasionally during the heating mode.
The unit may be a heat pump and is in the defrost mode. This is a normal function in order to melt the built up ice. Steam may be produced during this cycle for 5 to 15 minutes.
Allow the unit to finish its cycle and return to the heating mode. If this takes longer than 30 minutes, turn the unit off at the thermostat and call for service.
During the heating mode, my unit is blowing cold air for 5 to 15 minutes during the night or early morning hours.
The unit may be a heat pump and is in the defrost mode. This is a normal function in order to melt the build up of ice on the outside coil. It will return to normal heating operation within 15 minutes.
Allow the unit to finish its cycle and return to the heating mode. If this takes longer than 30 minutes, turn the unit off at the thermostat and call for service.
During the heating mode, my outdoor unit is leaking water onto the roof or surrounding ground area.
The unit may be a heat pump and is in the defrost mode. The water is the result of the melting ice. This is a normal function in order to melt the built up ice on the outside coil. It will return to normal heating operation within 15 minutes.
Allow the unit to finish its cycle and return to the heating mode. If this takes longer than 30 minutes, turn the unit off at the thermostat and call for service.
During the heating mode operation, I sometimes here a whoosh sound from the outdoor unit or when standing by the filter grill in the house.
The unit may be a heat pump and is shifting into or out of the defrost mode.
The unit may be a heat pump and is shifting into or out of the defrost mode.

Check Out Our Reviews . . . From Neighbors Near You

Ellen Battilana
Ellen Battilana
00:36 28 Jul 21
Loved the Hobaica service! Steven A. was the technician and I can't say enough great things about him. Called when he was on the way to my house (on-time as promised), very friendly, polite and explained exactly what happened and what he was doing to fix it. Super customer service!! HIGHLY RECOMMEND this family owned, local business.
ardy rinki
ardy rinki
00:17 28 Jul 21
Very good service providedVery punctual and completed the work in a timely mannerExplained the work that needed to be done and did a very good job fixing the problemVery good service in overall
Roger Freeman
Roger Freeman
22:05 27 Jul 21
Ryan performed the work on time with great efficiency.
Sita Cooney
Sita Cooney
18:58 27 Jul 21
Gave clear and concise information about my AC problems; gave solutions at various costs & warranties, and was professional and courteous throughout the exchange. I didn’t feel pressured and I feel very confident as a long-time customer.
Barbara Everst
Barbara Everst
13:38 27 Jul 21
Great service, on time and friendly. I love the peace of mind from the regular maintenance for my air conditioner and will ask for Tom again next time
Lou Stahl
Lou Stahl
19:22 26 Jul 21
I had a leaky faucet and, because our regular plumber was out of town, called Hobaica because they have serviced our AC/heating units for years and I knew I could trust them to do plumbing work, too. Ryan Waters came over in just a couple of hours and quickly diagnosed and fixed the problem. I would recommend him to anybody who needs an honest and efficient plumber.
Mark Rafferty
Mark Rafferty
17:53 26 Jul 21
Melissa in scheduling was FANTASTIC! She was very knowledgable and experience on how to get your Technicians out to our house that had no AC! Melissa and Hobaica are HIGHLY RECOMMENDED!Your Technician Jacey M was FANTASTIC! Very knowledgeable about the issues at hand and how to fix properly. He and Hobaica are HIGHLY RECOMMENDED. A+++
Ronald Rhoades
Ronald Rhoades
09:02 26 Jul 21
I quote Rev Rick Lewis at his request to relay the following information:I want to thank Scott Dale and Hobaica for outstanding service on my ac repair. Scott was veryProfessional,knowledgeable and pleasant. The job was completed in a very timely fashion and IAm very happy to commend both Scott and Hobaica, Thank you! Rick Lewis, Phx AzI Ronald Rhoades did have similar AC problem that Scott Dale fixed on short notice on a hot 115 deg.day and referred him to Rev Lewis when he called me about his AC outage. Thanks again to Scott and Hobaica service!
Steve DISC
Steve DISC
19:50 24 Jul 21
Scott Dale was johnny-on-the-spot (weekend service!) and diligent in attempting to find a freak leak from the A/C return duct inside the house. It occurred during the strong monsoonal activity in Phoenix during the month of July and he diagnosed that it was probably condensation on the return duct in the attic from humidity that then ran down the duct to the return register in the house. No problems found. Great work and very professional service from Scott!

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