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  1. #1
    Join Date
    Nov 2004
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    I have a five year old Sterling unit heater m#RF-45 which uses a Honeywell Smartvalve M# SV9540M 2229. On call for heat HSI energizes and lights pilot but main valve will not open. I have cleaned and inspected HSI assembly and all looks well. Ventor motor and main blower work fine. On one occassion I jiggled wires from HSI to plug on valve and valve opened, but only on the one occasion. I am also only getting 13 volts to one side of rollout and limit safeties. This is the first time I've encountered this type of valve which I do not want to replace until I'm sure it's faulty as it is $850.00 list ! Any help would be greatly appreciated. Thankyou.

  2. #2
    Join Date
    Feb 2001
    Post Likes
    Typical problem with that valve, needs replaced asap.
    I can buy a new heater for $850.
    Hey cockroach, don't bug me! ©

  3. #3
    Join Date
    Jul 2002
    Slacking off right now
    Post Likes
    The valve is 4 F't (F##Ked by the fickle finger of fate!) - The best tool bags on the market - The offical tool bag of choice by techs everywhere

    Arguing with some people is like wrestling a pig - eventually you realise the pig actually enjoys it

    Gonads serve a useful purpose but are no substitute for brains

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