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AccuTemp Steam n Hold model S64803D1403020 low water warning
Steam n Hold model S64803D1403020. first start of the day unit will heat then give a low water warning even though water level is fine. it will do this two maybe three times and then will function fine the rest of the day. tech support recommended replacing water sensors and then the pressure switches. Both done…
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9 Replies
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How is your water supply, pressure and volume? How often does it have to be decriminalized?
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forgot to mention its a manual fill, and its at a school. for its age (11 years) its in mint condition.
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I did a quick refresh of my mind and a small bit of digging, The symptoms you describe may be a overheat. The high temp limit is in series with the water board and will show as low water.
You can find a service manual here.
What power is this set up for?
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480v 17amp. I just found out that it will low water warning on an over temp. Will check that out…
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Here are the steps to replace the over temp switch, not happy….
1601579877208_SP8059-1711_Cast-Heater-Thermal-Paste-Replacement-Instructions.pdf 248 KB PDF - Click to view Copy Download Link
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They have a history or the heat relay sticking Make sure you have heat sink compound if you remove it.
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I’m not saying the switch is the problem, buy you should monitor it and check the temp setting. If you are at a higher altitude, water boils at a lower temperature.
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There is one important thing to check before replacing any parts. That’s that the water control board and the steam unit have a good ground. The ground is used for sensing the water level. You describe the problem as at first start or cold start. Everything is growing and moving from heat expansion at that time. I would think that a high resistance ground connection would vary from that.
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Thanks for the advise, I will ensure that I have a good ground connection.
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