HVAC Repair in Lake Havasu City, AZ
Homes here need heat from November through April and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers Mohave County will get in touch.
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Eleven months of work, in Lake Havasu heat and cold
Your air conditioner runs from May through September here, working against afternoons that average 96°F. That kind of heat load runs the compressor for months without a real break, and it's usually the compressor or the capacitor that gives out first, often in the middle of the afternoon when the heat is worst.
Then from November through April your furnace or heat pump takes over, working through nights that average 35°F. That's eleven months a year your system is doing one job or the other. 58% of homes here heat with electricity, so when a breaker trips or a storm knocks out power, the heat goes with it. Mohave County has logged 149 damaging wind events and 12 winter storms over the past ten years, and in 2024, 7% of Arizona households went at least 24 hours without power.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 35°F
- the average winter night it heats against
- 96°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Arizona requires HVAC contractors to hold a state license.
Arizona licenses HVAC contractors through the Registrar of Contractors. That license belongs to the contractor, not to any single job, so the same license that lets someone install a system is what covers them coming out to repair yours.
For a repair like this, that license is the thing standing behind the work. Whoever comes out to work on your heating and cooling system should be the one the state has on record, not just the company name on the invoice.
Sources: Arizona State Legislature · Arizona Registrar of Contractors
- Why is my heat not working?
- Most of the time it comes down to the thermostat, the igniter, or the power supply to the unit. Check that the thermostat is set to heat and the temperature is above room temperature first, since that gets missed more often than people expect. If the furnace tries to start and shuts off, the igniter or flame sensor is a common cause, and that is a repair for a licensed contractor. If nothing happens at all, check the breaker before assuming the furnace itself has failed.
- Why is my system running but not cooling the house?
- If air is moving but it is not cold, the system is likely low on refrigerant or the coil is blocked with ice or dirt. A dirty air filter is the most common cause, since it restricts airflow across the coil and can cause it to freeze. Check the filter first and replace it if it is clogged. If the air still is not cold after that, the system needs a contractor to check the refrigerant charge and the coil, since running it low on refrigerant can damage the compressor.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Make sure it is set correctly, has working batteries if it uses them, and is set to the right mode for what you need. Next check the air filter, since a clogged one can cause weak airflow, ice on the coil, or a furnace that shuts off. Then check the breaker for the unit, and outside, make sure nothing is blocking the outdoor unit's airflow. If the problem is still there after that, a licensed contractor will need to look at it.