THE BIG READ · THE BUSINESSFrontdoor's HVAC Upgrade Program Lifts Non-Warranty Revenue 19% as Claims Costs Fall
Frontdoor's HVAC upgrade program drove a 19% jump in other revenue while claims costs fell $7 million, reshaping the math for its 17,000-contractor network.
By ServiceMag Staff · 6 min read
HVACFurnace Short Cycling: Causes, Fixes, and How to Read the Limit-Switch Fault
Furnace short cycling has three signatures. Here is how to tell a limit trip from an ignition retry, measure temperature rise, and read the board code.
APPLIANCESDishwasher Not Cleaning Dishes: 8 Causes From Filter to Circulation Pump
A dishwasher not cleaning dishes usually fails on water, not on soap. Eight causes in diagnostic order, from a packed filter to a dead circulation pump.
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114 news · 94 guides · 8 interviews

Purdue Field Test Keeps a Fully Electrified Home Under 100 Amps for 31 Winter Days
A Purdue control system held an all-electric house inside a 100 amp panel limit for 31 winter days by nudging only heat pump and water heater setpoints.
HVAC
Lennox Residential Sales Fall 7% While Trane and Carrier Post Residential Gains
Lennox residential sales fell 7% and guidance came down, while Carrier's Americas residential rose 9% and Trane booked residential orders up high 20s.
HVAC
Watsco Buys The Granite Group, Adding 82 Northeast Branches
Watsco is buying The Granite Group, a $500 million New England plumbing and HVAC distributor with 82 branches. Financial terms of the deal were not disclosed.
Thermostat Not Working or Blank? How to Trace 24V Power From the Furnace Board to the Wall
A thermostat not working or showing a blank screen is nearly always a 24V power fault. Here is the meter-by-meter trace from the furnace board out to the wall.
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