Ive got a ravenheat rsf 820/20 combi boiler, but when i take a shower it starts nice and hot then goes cold, then back to hot again. it takes around 30 seconds to do this cycle. it does this 3 or 4 times during a 10 min shower. can anyone help please? also, ive misplaced my manual, so if anyone knows where i can download one from that would be great. thanks, lee

Asked by lee on 05/09/2009 5  Answers

ManualsOnline posted an answer 15 years, 6 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here
0 I have the same problem, i've opened forum www.diynot.com/forums/viewtopic.php?p=1246779#1246779 put your post maby sombady will help as. If you get any information pls let me know. patryk@vodafone.net
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0 sensors.? also why ravenheat do not try to help god knows
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0 it sounds like either a problem with the temperature sensor and firing rate matching the usage so that it throttles back and forth or perhaps as simple as a limit switch opening temporarily shutting down the burner. I have not seen this particular boiler but have boiler experience. If there is a storage tank then it could be a mixing valve, if it is tankless it could be the limit switch or temperature sensor.
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0 plight. sensors, these boilers are something else 20040074 screws just to remove the combustion t shaped cover. ok small lie but still a pain. ring bg if in the uk they will change anything at a fixed fee. are you in the uk your time zone seems different
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0 I am in the center of Oregon in the Pacific Northwest just in view of the Cascades. We are on pacific standard time Scott pilight@mail.com
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