| 摘要 |
PROBLEM TO BE SOLVED: To prevent a dust collecting filter from being deteriorated due to superheat even when a hot water heater is abnormally overheated. SOLUTION: When a cleaning operation switch 24 is turne on (STEP 1), a cleaner controller 20 detects temperature by a thermistor 17 (STEP 2) to detect whether or not the detected temperature reaches 80 deg.C (STEP 3). When the detected temperature of the thermistor is not lower than a prescribed temperature (YES in STEP 3), the operation of a cleaning blower is stopped to inhibit the operation of an air cleaner (STEP 4). Thus, when a gas fan heater is abnormally heated and the detected temperature of the thermistor is not lower than the prescribed temperature, the operation of the air cleaner is inhibited. Therefore, the suction of air heated by the gas fan heater from a cleaning inlet can be prevented. |
