Skip to main content
TIFFIN MOTORHOMES - SAP

05 Major Appliances

2025 Byway: Chapter 5

Residential Refrigerator

Your RV contains the Standard style residential refrigerator (Figure 0-1), which is powered from an outside source or from the unit’s generator or inverter, which uses a 12 volt battery power supply.

This unit operates as most home refrigerators do.

clipboard_ecf3017e2cf3cc2a48fda61ce9275e3f7.png

NOTE: While traveling, the refrigerator will be powered by the inverter.

For further operating and maintenance instructions, refer to the operating booklet found in the Owner’s Information Package.

NOTE: While traveling, the 12 V battery is charged by the engine alternator.

The inverter must be ON for the residential electric refrigerator to operate, if not connected to shore power, or if the generator is not running.

Ice Maker

Your ice maker (Figure 0-2), is equipped with an automatic shut off. As ice is made, the ice cubes will fill the storage tray, raising the shutoff arm to the OFF position. Do not force the wire shut off arm up or down.

  • To turn ON the ice maker, lower the wire shutoff arm.
  • To turn OFF the ice maker, lift the wire shutoff arm to the OFF position (arm up) until it clicks.
NOTE: The ice maker must have RV antifreeze cycled through it for proper winterization.

clipboard_e7147d9089456b37c1dcddb7401865958.png

 

Microwave

The BYWAY contains either a microwave oven (Figure 0-3) which operates as a convection microwave. All microwave ranges operate on 120-volt AC electrical power, supplied either by the external electrical hookup or by the onboard electrical generator in the motorhome.

clipboard_e032da2b9b96021eb0f94a20297758f2a.png

Touchpad controls are used for operating the convection microwave (i.e., cooking temperature, mode, power level, and cooking time). For basic operating instructions, care, and maintenance for the proper use of the microwave, refer to the specific manual in the Owner’s Information Package.

Air Filtration Fan

In the motorhome, the “exhaust” or air filtration fan (Figure 0-4) is built into the microwave, and its function is to filter the air and exhaust to the outside.

The filtration fan must be used whenever cooking is performed to filter any airborne cooking residues and heated air.

clipboard_eeccad99481607f74de72893dd84fd2e2.png

The filtration system can be used as supplemental filtration of other odors and gases including tobacco smoke, candle fumes, and related vapors. It contains filters, which can be removed and cleaned or replaced to ensure normal operation. Consult the particular owner’s manual contained in the Owner’s Information Package for more information.

Gas Oven and Cooktop (Optional)

The BYWAYmight be equipped with a standard recessed three burner cook top (Figure 0-5), or an optional, three-burner, recessed cooktop with oven (Figure 0-6).

clipboard_ee477822eae8853fdc40d6839f1de8b8c.png

To light oven for the first time:

Light the oven (Figure 0-6) by turning the gas control knobs to the OFF position. Check that the main inlet gas valve is OPEN. KEEP THE OVEN DOOR OPEN for the full ignition process to view the pilot and burner until lit. Push and turn the gas control knob counter clockwise to position until pilot lights; you will hear a small clicking noise. If ignition does not occur in 5 seconds, turn the gas control knob off, wait for 2 minutes and repeat the lighting procedure. Once the pilot flame is lit, continue to hold the oven control knob in for 10-15 seconds, then release the knob and verify that the pilot stays lit.

After the pilot flame is ignited and the control knob is released, turn the control knob counter-clockwise to the required temperature setting. Within 20 seconds of the pilot flame being lit, the main burner flame will automatically ignite. Confirm with a visual inspection before closing the oven door.

To shut off your oven:

Push the oven control knob and rotate clockwise to the OFF position. Extinguish all pilots when refueling or traveling. The fan will continue to run for 10-15 minutes after turning off the oven. Do not attempt to adjust the oven pilot light, as it has been factory adjusted and factory set.

To extinguish the oven pilot light when use of the oven is concluded, push inwards on the oven control knob and turn that knob clockwise to the OFF position.

To operate the three-burner cooktop:

Ensure all cooktop knobs are turned clockwise to the OFF position. Push and turn the cooktop knob 90 degrees counter clockwise to the large flame icon. Push down on the cooktop knob and press the spark ignition button together to light the burner; continue to hold down the cooktop knob for 10-15 seconds to disable the safety cut off.

The cooktop is fitted with a burner safety cut off. If a flame is not present, the gas supply will automatically shut off. If no spark is present when pressing the igniter, check or replace the AA battery. For your safety, never attempt to operate the cooktop with battery power exhausted.

clipboard_ed6c3f08b137e695a70420bb7a22a990d.png

clipboard_e6a0479923dffea04834095f620320e0e.png

clipboard_eb1f4ffb51ea818b6ef987a13e42969bf.png

 

Water Heater

clipboard_ed035bd63a568938bee20f1468ebfddb9.png

Before the water heater is to be used, fill the fresh water system and purge the water lines to and from the water heater by opening all the hot-water faucets (Figure 0-7), until water steadily flows from each one and no spurting or hissing sounds are heard.

The water heater ( Figure 0-8), uses either the LP gas system or the 120 volt AC electrical system to operate the heater.

Proper and safe operation of the water heater requires that all safety information provided in the owner’s manual be read and understood before placing the water heater in service.

clipboard_e4b17a9b5481a42559bd3c5a83a523d92.png   clipboard_ec32db88f000f6975012991dbea536985.png

Take the time to become familiar with this manual (provided in the Owner’s Information Package).

NOTE: When you turn ON the switch for the water heater, the middle red button will light up. It will go OFF after several seconds—this means the water heater is lit. However, if the light stays illuminated, then that means the water heater has not ignited.

LP Gas – Electronic Ignition Operation

For detail information on the water heater or specific information about select steps in operating the water heater, refer to the owner’s manual for this appliance contained in the Owner’s Information Package.

120 volt AC Electrical Operation

For detail information on the water heater or specific information about select steps in operating the water heater, refer to the owner’s manual for this appliance contained in the Owner’s Information Package.

clipboard_eb4db30c9fbbe955ce4638903b1b99fe1.png

Water Heater Storage

If the motorhome is to be stored during the winter months, the water heater (Figure 0-8) should be drained to prevent damage caused by freezing water contained in the water heater.

To drain the water heater, first turn OFF all electrical power, turn OFF the LP gas going to the water heater, then turn OFF the water pump. Open both the hot and the cold-water faucets to drain the water lines and open the drain on the water heater to drain the entire system. When re-activating the water heater after the motorhome is taken out of storage, make sure that the entire water system, including the water heater, has been filled with water and the lines have been purged of any entrapped air before relighting the water heater. Failure to do so might allow the waterheating element to be turned ON before it is immersed in water; thereby, causing the premature failure of the heating element and voiding the warranty.

clipboard_e01eed18f55537267abc31f81e89707e2.png

Pressure Relief Valve

The relief valve (Figure 0-9) for over-pressure and over-temperature conditions is located on the exterior of the water heater. This valve will operate if the water temperature reaches or exceeds 210°F or if the water pressure reaches or exceeds 150 psig.

Since the water system in the motorhome is a closed system when all water valves are shut, the water heating cycle can raise the temperature and, consequently, the pressure, of the water in the water heater; thereby realizing pressure increases approaching 150 psig.

Should this pressure (i.e., 150 psig) be reached, the pressure-relief valve will begin “weeping,” that is, there will be minor dripping or leakage from that valve until the pressure drops below 150 psig, at which time the pressure-relief valve will reseat itself and restrict the water flow. This is normal operation and should not be a cause for alarm. Do not obstruct or block the pressure-relief valve in any way, as this would keep the valve from functioning normally and protecting the hot water system.

Due to Tiffin Motorhomes’ commitment to continuous research and development, some units might also contain major appliances manufactured by other companies other than what is shown in the figures of this section. Refer to the information in your Owner’s Information Package for more information on your coach brands.

  • Was this article helpful?