Fire Pump Run Test Operator Certification Practice Test

Regular checks of the lube oil heater are essential because this heater keeps the bearing oil at the proper temperature for reliable lubrication on startup and in cold conditions. If the heater or its controls drift, fail to energize, or leak, oil viscosity can be off, leading to increased wear or hard starts. Checking weekly allows you to verify the heater is powered, the temperature setpoint and cut-in/cut-out are correct, there are no leaks, and the temperature indicator shows the oil in the expected range. It also gives a quick look at oil level and condition and ensures any alarms or shutdowns are functioning. Daily would be unnecessarily frequent for this item, while monthly or quarterly could let developing faults go unnoticed. Always follow the manufacturer’s guidance, but weekly maintenance is the standard practice for keeping the lube oil heater ready.