How to test gas pressure on Universal H series heater?
How to test gas pressure on Universal H series heater? Step 1: Step 2: Step 3: Press the Mode button to place the heater in Standby Mode. Hold the Mode and Down Arrow buttons simultaneously for 3 seconds for Bypass operation. “bo” will be displayed on the screen. Page 7 Gas Pressure Testing Measure the inlet Static Pressure (valve off) and Load Pressure (valve on / energized). What are the models of a hot tub heater? POOL AND SPA/HOT TUB HEATERS H150, H200, H210, H250, H300, H350 & H400 MODELS INSTALLATION, OPERATION, & SERVICE MANUAL How to troubleshoot a universal...