W/Pool DW621/1 wh Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › W/Pool DW621/1 wh This topic has 0 replies, 1 voice, and was last updated 17 years, 9 months ago by PGS. Viewing 1 post (of 1 total) Author Posts July 1, 2008 at 11:46 am #37782 PGSParticipant Ive got this 18 year old m/c in for no heat. I found the small hose from sump to matrix completly blocked. The heater tests ok , as do all tocs and am I barking up the right tree, or am i looking timer. Anymore advice appreciated. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In