Question about Dream Maker Spas Dream Maker SpaDition Vico Pump 15 HP ()
This sounds like a flow issue. Your controller and heater is made by Balboa and requires a minimum flow rate of around 25 gallons a minute to function properly. This flow rate is measured by sampling temperature differences between the inlet and outlet of the heater. If the flow is low the temperature will increase at the outlet. As long as the difference is less than 4 degrees, then the unit will function normally, but once the difference increases to 4 degrees or above the unit will shutdown and display OH, OHH or DR ( may vary depending on model). Reasons for this occurring... dirty filter, clogged pump inlet, partially or completely closed valve in the same line as the heater, obstruction in the plumbing before or after the pump, blocked suction fittings. There is a simple test that can be performed to determine if the problem is flow related. On the main circuit board is 1 or more banks of micro switches (called DIP switches) They are usually red in color and numbered 1-x (x being the highest number from 5-9). On the insideof the control box lid is a schematic which references these switches in a chart or table. Usually Dip Switch 1 will be the one. This switch is usually OFF. With the System on and running - Using a Pen or small tipped (INSULATED) screwdriver, carefully push the switch to the ON position (up or down as needed). Now observe the display and watch for "A" and a temp, then watch for "B" and a temp. Note the difference between the 2 temp readings. NO difference is good, any difference less than 3 is good, any difference 3 and higher is NOT good and indicates a flow issue. If the reading is high, look for one of the above symptoms to be present.
Posted on Sep 09, 2010
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Posted on Jan 02, 2017
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