tigerdunes is this a good thermostat match for my system I like the fact I could have remote access though the web Honeywell Prestige IAQ Comfort System - YTHX9421R5051 FEATURES: •Control heating, cooling and IAQ equipment with only 2 wires at the thermostat. Heating, cooling and IAQ equipment wires to the Equipment Interface Module. •Patented interview based programming and installer setup. •RedLINK wireless communication. •Configurable for residential and light commercial applications. Meets commercial code and is title 24 compliant. •Light commercial - commercial language (occupied and unoccupied), schedule holidays and custom events, remote setback, economizer and time of day. •Delta T Alerts and Diagnostics informs customers when their system is not operating as expected with instructions to contact the dealer. Provides a sense of security and greater comfort while generating repeat business. •All Prestige® IAQ 2.0 systems come standard with a return and discharge air temperature sensor to measure Delta T. •Alerts and User Interactions Log - Keeps a searchable history of alerts and setting changes to the thermostat to determine if there is a system malfunction or if the issue was caused by user error. •Customizable Service Reminders allow dealers to remind their customers when its time to call for service, when their warranty is expiring and to provide customized alerts. •USB port for transferring Installer Setup, Customizable Reminders, Custom Events and Holidays to multiple thermostats. •USB port for adding the dealer's full color business logo on the screen. •3 assignable outputs to control humidification, dehumidification, ventilation and a stage of heating or cooling. SPECIFICATIONS: Application Up to 4 Heat/2 Cool Heat Pumps Application Up to 3 Heat/2 Cool Conventional Systems Programmability 7-Day Multiple Day Programming or Non-Programmable Changeover Auto or Manual Color Arctic White Switch Positions (System) HEAT-OFF-COOL-AUTO-EM.HEAT Switch Positions (Fan) AUTO-ON-CIRC Power Method Hardwired Terminal Designations R, C then RedLINK to Equipment Interface Module Electrical Ratings 18 to 30 Vac Frequency 60 Hz Frequency 50 Hz Electrical Connections Screw terminals Operating Temperature Range (F) 32 F to 120 F Operating Temperature Range (C) 0 C to 48.9 C Setting Temperature Range (F) Heat: 40 F to 90 F; Cool 50 F to 99F Setting Temperature Range (C) Heat: 4.5 C to 32.0 C; Cool: 10 C to 37.0 C Humidity Setting Range Cooling: 40 to 80% RH. Heating: 10 to 60% RH. Stages Up to 4 Heat / 2 Cool Heat Pump or Up to 3 Heat / 2 Cool Conventional Outdoor Sensor N/A Remote Sensor N/A Operating Humidity Range (% RH) 5 to 90% RH, non-condensing Includes THX9421R5013 Thermostat, THM5421R1013 Equipment Interface Module and two C7735A1000 Duct Sensors Comments Tri-Lingual Display (selectable for English, French or Spanish) Used With RedLINKT enabled thermostats and accessories Display Size 8.06 sq in. Humidification Setting Range 10 to 60% RH. Dehumidification Setting Range 40 to 80% RH. Voltage 18 to 30 Vac

Hello all. Cincinnati, Ohio calling out for help. Like Rusi P, I have the same problem and have the Beckett R7184B as well. So I opened the window and found one of the spark ignitor wires off and had grounded and signs of an old spark-burnt area in the box. So I thought, well heck that’s an easy fix. pulled the tip out since I was in there and cleaned it all up. Put it all back together including the disconnected wire which I clamped a little tighter to stay. Well it’s still doing the cycle for awhile then into recycle mode....then the pump kicks on a minute or so later. No flame this time and then shuts off into lockout. With all that said, questions....did the short take out my primary ( but it appears to be acting somewhat reasonable with the proper reset functions- meaning if it got cooked I would assume it would not even reset correctly) . Or could all this be a bad thermistor? Please help

I would like to thank everyone for there thoughtful comments. Today another Senior Tech stopped by (the sales rep also a former tech arranged this for us) He walked in and immediately I envisioned Sherlock Holmes just by his demeanor. We went into the basement and unlike the previous 4 or 5 techs who spent hours on this rather then opening up the oil furnace He simply looked at the large pipe that extends from the furnace to the chimney. Then like Sherlock he rubbed his ring finger over it near the furnace. He smiled & said I know what the problem is. (I thought he was joking) After showing me a little dust. He pointed out a little discoloration on the pipe . He then said occasionally the heat is going in the wrong direction.. To prove this he connected a Draft Meter. When the system is on (flame on) its negative but when the fan goes on it is positive (looking for air) We went up stairs and once again he smiled. We have chairs and stuff in front of the outgoing vents and he moved them a few inches & then said problem solved. He said the newer powerful systems simply need to circulate more air. both in and out. We went back to the basement with his Draft Regulator and it tested perfect. IT only took this gentleman less then a minute to resolve a problem that we had since November or December -A problem that most of the other techs downplayed etc The chairs and stuff were there with the old less powerful furnace without any issues. . again thanks for your input.

Good point baymee, I'll have to contemplate that one but also check to see if the draft is in fact adjusted correctly. Mark, thanx for that chart, thats really helpfull, I'm printing that as we speak. You work in a northern climate too as I recall. You probably see the same thing all the time too, people blocking off their combustion air vents because of the cold air coming in and the fear of freezing pipes. Thats why I think the "fan in a can" is such a good idea. We seemed to have comandeered this "Beckett burner won't stay running" post, but I believe we've all told him all he has to know to make a decision on what to do.