Honeywell Thermostat/ With Nordyne A/C Single Package 4 Ton H.p. - HVAC - DIY Chatroom Home Improvement Forum

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Old 12-08-2010, 09:53 AM   #1
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Honeywell Thermostat/ With Nordyne A/C single package 4 ton h.p.

We live in Northern Florida. We swapped out the thermostat that came with our Nordyne Q5RD-048K; (real cheap) for a Honeywell RTH 7500 programmable last winter when we first bought our new home here. The fellow who intalled the Honeywell (the company we got the Nordyne from)said it was only the second one he'd done.! We're concerned to think he didn't set it up right...
Now we're having record breaking cold and the Aux. heat setting ran for four hours this a.m. and didn't heat up. Couldn't get it above 63 degrees! The temp dropped to 24 degreesovernight. We set the temp at 60 after 9 p.m. and it goes to 64 at 5:45 a.m. Last night my husband said it ran ALL NIGHT! Is something wrong here?


Last edited by NanaMcal; 12-08-2010 at 09:55 AM.
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