Falling leaves and cooling temperatures offer a reminder that winter is just around the corner. For Potable Water Cabinet users in the northern climates, the fall season provides a good opportunity to prepare your equipment for the cold temperatures to come.
Operational heat pads are a must. Use the following procedure to test your cabinet for heat:
1. Set the thermostat to its maximum setting (100° F).
2. Wait two to three minutes.
3. While wearing a protective cloth glove, feel the inside cabinet side walls about 12” from the top, bottom and sides. If your heating system is working correctly, you should feel heat at these four points. If heat is not felt at any point on the inside side walls, check the thermostat for proper operation, or the power feed line for a tripped circuit breaker. If heat is present, but not at all four points, you may have a faulty heat pad that needs replacing. Check your manual for the correct part number for your cabinet model. If you aren’t sure which model you have, contact Semler and we will help you identify your model.. The thermostat factory set point is 50 degrees Fahrenheit. Overriding the set point may cause premature failure of your heater elements.
Remember – ALWAYS KEEP YOUR CABINET DOORS CLOSED, especially in the cold season. The heat will not prevent freeze up conditions with the doors open in sub-zero temperatures for longer than the filling time (20-30 minutes max.).
A routine check for various leaks around fittings and joints is necessary for PWCs in warm and cold climates. It’s also recommended that a thorough examination of the hose be completed, checking for cuts, deterioration and leaks. Your Potable Water Cabinet Hose should be reversed every six months, and replaced with new hose at least once a year. Failure to replace damaged hose can contribute to water contamination. Finally, check your cabinets’ hardware and make sure that all fasteners (nuts and bolts) are securely tightened.